Dutch Muscle Cars & Dragracers

Reglementen – Motoren

Reglementen Motoren 2005

(alle voorgaande uitgaven komen hiermee te vervallen)


Vragen?
Heb je vragen over de reglementen neem dan altijd contact op met je klassevertegenwoordiger, de reglementencommissie of de wedstrijd-secretaris.


 

Explosion reglementen Nederland 2005

(alle voorgaande uitgaven komen hiermee te vervallen)

– Explosion Sprint & Dragrace Championship

General Technical Competition-motorcycle regulations

Additional regulations:

– Junior Dragbikes

– Pro Scooter (PS)

– Street Bike (SB)

– Street Twin (ST)

– Ultimate Street Bike (USB)

– Super Street Bike (SSB)

– Super Street Twin (SST)

– Pro-Stock Bike (PRO)

– Funny bike (FB)

– Top Fuel Bike (TF)

– Super Twin Top Gas (STG)

Let op! Het is slechts 1-seizoen mogelijk om met KNMV daglicenties te rijden Vervolgens is een normale licentie verplicht, die overigens ook een betere (persoonlijke ongevallen) dekking biedt.

Reglementen zijn natuurlijk constant aan veranderingen onderhevig. Indien in deze reglementen iets ontbreekt of aangepast moet worden, gezien in internationaal verband, tengevolge van technische ontwikkelingen, de aard of het niveau der competitie of deelnemersveld in een bepaalde klasse, of gewoon volgens gezond verstand, stuur ons dan een onderbouwd verzoek om wijziging of toevoeging(en). Het bestuur van EXPLOSION beslist uiteindelijk hierover.

Eventuele tussentijdse reglementswijzigingen zullen dan in de ‘Sprinter’ gepubliceerd worden.

Bedenk wel dat voor al deze reglementen uiteindelijk de KNMV Motorsport Reglementen is.Neem voor informatie contact op met de KNMV (Secr. Sport: 026-3528515)


 

Explosion Sprint- & Dragrace Championship

Championship is open to all members of EXPLOSION .

The classes will be as follows:

• Junior Dragbikes (JD) Junior klasses in the age of 10-12 and 13-18 jears old

• Pro Scooter (PS) Mopeds or scooters, modified for dragracing.

• Street Bike (SB) Street certified bikes, minor modifications. ­Index applies.

• Street Twin (ST) Street certified, two cylinder bikes, minor modifications.

• Ultimate Street Bike (USB) Street certified bikes, limited modifications for dragracing. Index applies.

• Super Street Bikes (SSB) Street based motorcycles, modified for drag­racing.

• Super Street Twins (SST) Street based motorcycles, two cylinder maximum, modified for dragracing.

• Pro Stock (PRO) Stock appearing, gasoline burning, normally ­aspirated class, built for dragracing.

• Super Twin Top Gas (STG) Gasoline burning, two cylinder motorcycles, built for dragracing.

• Funny bike (FB) Gasoline or Methanol burning, all cylinder motorcycles, specially built for drag­racing class.

• Topfuel Bikes (TF) Ultimate motorcycles, specially built for drag­racing class. Unlimited modifications and fuels.

NOTE: A minimum of two events per class in a season to comprise the Club Championship.


Specifications vehicles: 1

Motorcycles must comply with standing technical regulations.

Classification: 2

At the conclusion of the season, all points scored by Explosion members will be added together and the rider with the highest number of points will be declared class-champion. Number of scoring points to be announced prior to start of next season.

Points: 3

Points at each round will be allocated as follows for every competitor:

Attendance points: each competitor who has been scrutineered and signed on: 11 points

Abandonment: In the event of racing being terminated or abandoned by bad weather before conclusion, points will be rewarded up to the last completed round of competition or qualifying for each class.

Points awarded in a (4, 8, 16 of 32-Field) :

11 points after event registration and tech inspection

Qualifying position:
1 : 8 points

2 : 7 points

3 : 6 points

4 : 5 points

5 and 6 : 4 points

7 and 8 : 3 points

9 t/m 12 : 2 points

13 t/m 32 : 1 point

Eliminations 32-Field 16-Field 8-Field 4-Field
Winner
110 pnt
100 pnt
90 pnt 80 pnt
Runner-up 90 80 70 60
Loser 4e round 70
Loser 3e round 50 60
Loser 2e round 30 40 50
Loser 1e round 10 20 30 40

Improvement Dutch record: 10 points.

 

Points awarded in Classes with a all-bike/car-run :

11 points after event registration and tech inspection

Qualifying position:
1 : 16 points

2 : 15 ,,

3 : 14 ,,

4 : 13 ,,

5 : 12 ,,

6 : 11 ,,

7 : 10 ,,

8 : 9 ,,

9 t/m 12 : 8 ,,

13 t/m 16 : 7 ,,

17 t/m 20 : 6 ,,

21 t/m 24 : 5 ,,

25 t/m 28 : 4 ,,

29 t/m 32 : 3 ,,

33 t/m 48 : 2 ,,

49 t/m 64 : 1 point

Eliminations 33-64 Field 17-32 Field 9-16 Field 5-8 Field tot 4 Field

Winner 100 90 80 80 80 points

Runner-up 80 70 60 60 60 ,,

Loser 5e round 70 – – – – ,,

Loser 4e round 60 60 – – – ,,

Loser 3e round 50 50 50 – – ,,

Loser 2e round 40 40 40 40 – ,,

Loser 1e round 30 30 30 30 30 ,,

Improvement Dutch record: 10 points. (in classes without a index).

Ties: 4
In the event of a tie between racers for first place in the championship after conclusion of all rounds, the winner will be determined in the following matter:

A] The rider who has won the most races during the championship. If there’s still a tie, then:

B] The rider who qualified highest at the final round of championship.

Startnumbers: 5

The startnumber in a class is reserved for the rider, ending in the Sprint- & Drag­racing Championship the previous year in that position, for the duration of the season. This startnumbers are still reserved, even if the rider is not competing or is moving to another class. All other, subsequent startnumbers are designated by race control by the beginning of each event. In the event riders wishing another startnumber for a particular reason: with consensus of all riders involved, an­other number can be given by the racing secretary before the beginning of the season.

Entry fees: 6

Fees may vary due to particular circumstances involving the organisation of a particular event. In case of abandonment, entry fees paid for the event will not be refunded by the organizer.

Qualifying: 7

A minimum of 3 sessions qualifying will be held; track conditions permitting. There will be compulsory alternate lane qualifying. For first qualifying runs pairs should be run where possible, lane choice for first qualifier is at the discretion of the start crew and singles should be restricted to one only per session, track conditions permitting. A valid qualifying run must be made under engine power and an ET and/or TS must be recorded. In the event of identical qualifying elapsed time, the driver with the faster top speed, recorded on the qualifying runs in question, will be awarded with the lower qualifying position. Runs faster than the index of a particular class, will be placed behind the last valid ET-qualifier, with the fastest ET placed as last qualifying position.

Choice of lane: 8

The rider with the quickest time from the preceding round will be allowed to inspect the start line, if required, immediate prior to the running of his/her class. The driver with the better qualifying ET gets first round lane choice, and in subsequent rounds, lane choice goes to the driver with the lowest ET in the previous round.

Elimination ladder: 9

In all classes, the elimination ladder will be established as follows:

16 Vehicle Field: 8 Vehicle Field: 4 Vehicle Field:

No 1 races No 16 No 5 races No 12 No 1 races No 8 No 1 races No 4

No 2 races No 15 No 6 races No 11 No 2 races No 7 No 2 races No 3

No 3 races No 14 No 7 races No 10 No 3 races No 6

No 4 races No 13 No 8 races No 9 No 4 races No 5

In short fields the American bye run system can be adopted by the race director.

Prior to the first round of any elimination, pairings will be announced. Any queries concerning pairings should be taken up with Race Control not later than one hour before racing is scheduled to start. All classes will be given adequate notice of their running time. All elimination pairs must be run in order of the ladder.

Field size: 10

Field size, track conditions and schedules permitting, will be as follows:

6 qualifiers or less : 4 vehicle field

7-12 qualifiers : 8 vehicle field

13-24 qualifiers : 16 vehicle field

24+ qualifiers : 32 vehicle field

Alternates: 11

It is the responsibility of competitors to report breakages no less than one hour before scheduled time for first round of eliminations. Failure to do so may render their qualifying points void for that meeting. The first alternate will be positioned to race the slowest of the opponents made available by original qualifier failure to appear in round one, the second alternate to race the next slowest qualifier and so on until the ladder is complete or all alternates have been assigned ladder positions.

Burnouts: 12

All pre-race burnouts are restricted to designated areas, using water only. If a contestant’s vehicle should break on a burnout and cannot back up or be push­ed back, it’s not permitted to turn on the track and drive back to the starting line. Crossing the centerline during a burnout is not a disqualification. Fire-burn­outs are strictly prohibited.

Length and time duration of the burnout must be reasonable and in concert with the opponents procedures. Streetbike classes and Street car classes may not cross the starting line on any burnout. Stationary burnout limit: five seconds. Additional burnout limitations are at the discretion of Race Control.

Staging: 13

Once a vehicle reaches the front of the staging lanes for a run, it must be prepared to fire. In order to be a legitimate winner, a contestant’s vehicle must self start and self-stage. This rule also applies to single runs. Push-starting or push-staging any vehicle is prohibited. Staging must be done under the vehicle’s own engine power. Re-starts are allowed as necessary, however, it must be done in a time frame that permits the contestant to complete the run with the designated opponent. If the opponent has been sent on a single run – the bike losing fire may not restart and the run is forfeited.

The application or use of any device, mechanical or electronic, that permits the driver to ascertain the position of their vehicle in relation to the starting line is prohibited. Only visual observation of track equipment may be used to ascertain the vehicle’s position.

In all car-classes preceded by “Super”(i.e. SSC, SG, SC); both riders must be in pre-stage before either rider can stage. THE FINAL STAGING MOTION, USING APPLIED POWER, MUST BE IN A FORWARD MOTION GOING FROM PRE-STAGE TO STAGE POSITION.

A reasonable amount of time will be permitted for drivers to stage. The time limit will be determined in the sole and absolute discretion of the Official Starter. Failure to stage upon the starter’s instructions is possible grounds for disqualification. After proper staging and receiving the Starter’s signal to go, restaging for a second time is prohibited. Any driver leaving the starting line before the start system is activated, including riders on a single run, will have their time disqualified for the run.

Single runs: 14

In situations where a driver is making a single run, he is considered the winner once he stages and receives the start signal, or is declared winner by the official starter. If a competitor crosses the boundary line on a single run, the elapsed time is voided for lane choice determination.

Break-out rules: 15

Contestants who run below the posted index or category standard during eliminations are disqualified, with the following exceptions:

1. When an opponent foul starts or crosses a boundary line.

2. On a single run.

3. When both riders run under their index, the driver that is the least under is the winner.

4. If two contestants run under by the same margin (with ET’s extended to a thousandth of a second), the driver crossing the finish line first is the winner.

Disqualifications: 16

– Red light foul start: Leaving before the start system is activated.

– Lane boundary crossing violation: It is considered a disqualification when any portion of a tyre completely crosses the painted line surface. In case multiple boundary lines are utilized, the line directly adjacent to the competitors racing lane will be used for reference. Intentional crossing of boundary lines to leave track or avoid depositing debris or oil on track, are not grounds for disqualification.

– Excessive braking: Anytime it has been judged that excessive braking has resulted in the loss of control as to cause contact with the guard-rail, light fixtures, or crossing the center boundary lines – INCLUDING PAST THE FINISH LINE – the contestant will be disqualified.

– Contact with track fixture.

– Alcohol or drugs: Any driver and/or pit crew member found to be under the influence of alcohol or drugs, regardless of amount during racing, will be ejected from the event.

First or worst procedure: If both riders commit a foul during a race the rider committing the worst foul will be disqualified for that run. If both riders commit the same foul then the first rider committing the foul is disqualified. The following list of fouls is in descending order (i.e. 1 is worst):

1. Contact with any track fixture (i.e. Christmas tree, timing equipment, guard rail etc.) is grounds for disqualification.

2. Crossing any part of the track centerline.

3. Red light.

4. Crossing any part of the lane boundary lines.

Machine weighing: 17

It’s the responsibility and discretion of the race organizer to weigh machines before or after each qualifying or elimination run where weighing brakes are in force.

Protests: 18
Protests are only acceptable, presented to the class-representative, within 30 minutes after announcement of the racing results, paying a fee of EUR 25,-, plus EUR 100,- in case of displacement check involving cylinder head removal. If an inspection proves a protested vehicle to be out of its proper class, fees will be refunded.

A protested vehicle must be presented, and if required disassembled for inspection by the owner and/or crewmembers upon official demand. Refusal is cause for disqualification and denial of points and price money.

In case an engine displacement found corresponding to the class regulations, the owner receives EUR 100,- to compensate for engine stripdown costs. The fol­lowing tolerances or margin for error are recommended during inspection or teardown: 1 percent or 1 cc.

In all issues the above regulations are not sufficient the roadrace/sprint commission of KNMV decisions are final and are judged by Race Control, the KNMV ‘Motorsport Reglement’ covers all regulations.


General Technical Competition-motorcycle regulations

Specification of motorcycle: Motorcycles must comply with the requirements of the following regulations:

ENGINE: 1

Engine: Can be started with an external starter (Streetbike series exempt). Rollers- or push starts are not allowed. If fitted with a car type engine, the crank­shaft should be mounted across the frame, in line with the wheel spindles. Car engines must run a steel flywheel and a full circle guard

Capacity restrictions: Where the individual class regulations allow, supercharged and turbocharged engines are allowed up to 2000 cc. Normally aspirated engines are allowed up to 3500 cc.

Drain plugs: All drain plugs securing any liquid must be so fitted as to prevent any leakage, and possessively locked against loosening with wire. Oil supply pipes should be adequately wired in position. External oil filters and screws or bolts entering an oil cavity must be safety wired (Streetbike Series exempt).

Overflows: All breathers must terminate in a catchtank of 550 ml minimum capacity, or vent into the exhaust if normally aspirated. Supercharged engines need a catchtank with the same capacity as the oiltank (Streetbike Series exempt).

Engine restraints: V-twin motors running injected nitro, must utilise cylinder head restraint or a ballistic type explosion blanket. Blankets must meet SFI specification.

Exhaust pipes: May not extend behind rear wheel, directed away from rider, gas tank and tyres. Flexible pipes are not allowed.

DRIVETRAIN: 2

Primary transmission: If the clutch and/or primary transmission is exposed, it must be fitted with a guard as a safety measure to protect the rider even as a result of breakage. The guard must be conceived in such a manner that under no circumstances the rider can come into accidental contact with these transmission parts. It must be designed to protect the rider from injuring fingers. Outboard mounted clutches must have a cover of at least 3 mm aluminum or 1 mm steel. Any suitable make or type of drive chain/belt may be installed. Motorcycles with engines driving centrifugal clutches may not be started in the pits unless the rear wheel is elevated off the ground, on a strong, safe support stand.

Gear shift systems: All gear shift systems must be rider controlled. Any form of automatic, computer controlled or RPM activated gear shifting is strictly prohibited. Where the gear shift is air and/or electrically assisted, all wiring and switches for this system must be separated from the main wiring harness, and must be readily traceable and accessible for inspection by the scrutineer. Except where clearly part of an ignition kill device, any part of wiring in the gear shift system which, in the opinion of the scrutineer, passes through, or is connected to a closed control box or unit of any type, will be grounds for disqualification.

Chain Guard: Mandatory on all motorcycles. Chainguard must be 1.5 mm steel or 3 mm thick aluminum and must be securely mounted . Chainguard must cover the width and at least the top run of the chain, from centerline to centerline of sprockets.

FUEL SYSTEM: 3

Fuel tanks: All fuel tanks must be securely fitted to the machine and incorporate securely fitting filler caps. Metal tanks must be robustly constructed.

Non-metallic Fuel Tanks – Non metallic fuel tanks must carry an international standard mark for the purpose for which it is being used e.g. S.F.I., I.S.O.

Fuels: For petrol burning classes, the dielectric constant as per DC meter may not be greater than 4, and Propylene Oxide is prohibited. Octane boosters are permitted.

For non-petrol burning classes, Hydrazine and Propylene Oxide are not permitted, otherwise there are no limitations on the types of fuel permitted. Competitors should check the class regulations for any specific restrictions.

Nitrous Oxide injection systems: Only gas storage cylinders certified for use at the working pressure of the system may be used (this also applies to any machine with a pressurized gas fuel system). All storage cylinders should have rupture discs or safety valve to prevent pressurization. All bottles must be securely mounted: no hose clamps or tie wraps. The bottle to solenoid supply pipe should be of a high quality braided steel hose attached to the frame at regular intervals. Any machine running Nitrous Oxide: the system must remain inoperable until the throttle is fully open. Any other switches must be wired through the ignition switch. The engine must be able to be cranked over without the ignition system operable to enable purging of any gas from the combustion chambers. A separately operated ignition arming switch must be fitted.

Fuel lines: Must be securely fitted at all joints and a quick action fuel tap must be within easy reach of the rider. Where nitromethane fuel is used in any percentage, a lanyard is mandatory to operate a spring loaded fuel shut off valve, with means to completely cut off the fuel supply by handlebar control. Pump driven fuel injection systems must have high pressure tubes as Aeroquip or similar.

Fuel pumps: Any make of fuel pump may be fitted. If electrically operated, the pump(s) must be connected to the ignition switch so that they are switched off with the ignition.

BRAKES & CONTROLS: 4

Brakes: All machines must be equipped with at least one efficient brake per wheel, operating independently and acting directly on the wheel. Hydraulic bra­kes may be fitted to any wheel, provided that the cylinders and lines are adequately protected from accidental damage. The hydraulic fluid reservoir must be mounted in such a position as to allow easy inspection of the fluid level. All disc brakes must be of the double caliper pattern e.g. having brake pads on each side of the disc. Must be able to operate from normal riding position, i.e. both hands on handlebars and feet on footrests. Any class of machine capable of 175 mph and above must be fitted with dual front discs of minimum 230 mm diameter, or single disc of minimum 295 mm diameter. Caliper bolts must be lockwired (Streetbike Series exempt). Disc bolts must be lockwired, unless OEM combinations of production motorcyclewheel, disc(s) and safetybolts/shoulder bolts are used, which make lockwiring impossible or would compromise the safe­ty of the OEM assembly.

Handlebars and control levers: Any type of handlebar may be fitted at the owner’s discretion. It’s compulsory to fit lock stops to ensure a minimum clea­rance of 25 mm between the handlebars and any other part of the machine, to prevent trapping of the riders hands. The minimum angle of rotation either side of center line or mid point is 20 degrees. Handlebargrips, if fitted must be securely attached. All control levers must be of the ball ended type. Once the engine is running a competitor should not have to remove either hand from the handlebars to engage or disengage gear.

Throttle linkage: All motorcycles must have the throttle controlled by hand operated twistgrip, incorporating a positive acting spring attached directly to the carburetor or throttle arm. The throttle must close automatically upon releasing the twistgrip. For any motorcycle running nitromethane fuel, it is mandatory to have a positive return cable as well as a return spring i.e. a push-pull twistgrip. Any machine running Nitrous Oxide, the system must remain inoperable until the throttle is fully open. Any other switches must be wired through the throttle switch. For bikes with slider clutches a throttle locking device that will positively lock the butterfly to barrel valve linkage is mandatory. It is recommended that this device is located at the butterfly end of the linkage, however, a drilled throttle twist grip with locking pin is acceptable. This device is to be operated when the machine is being pushed back with the engine running. The locking device must be suitable flagged to clearly indicate when it is in use.

Footrests: Unless original equipment is used, the footrests should be of 19 mm diameter minimum and ball ended.

TYRES: 5

Tyres: The minimum cross section of tyre allowed for any class is 50 mm. Metal dust caps with rubber gaskets must be fitted to all tyre valves.

BODY: 6
Streamlining:
There must be a clearance off at least 20 mm between the stream­line and the extremities of the handlebars or steering device, including any attachment thereon, whatever the position of the handlebars. It must not be possible for the front wheel to make contact with the streamlining whatever the position of the handlebars. The streamlining must be constructed of metal or ­other suitable flameproof material, and fitted to allow complete liberty of movement of the rider, both when riding and when getting on and off the machine without the streamlining or any part of it having to be displaced. The screen, if fitted, must be constructed of perspex or similar material.

Numbers: Competitors should display their class and vehicle numbers to each side of the machine, in numbers and letters at least 75 mm high.

Appearance: All machines must be of presentable appearance at all times. Entries may be refused where appearance is not considered to be up to the general standards of competition.

ELECTRICAL: 7

Batteries: May be located at the owner’s discretion, provided that the mounting is of sound construction.

Ignition: Any type or make of ignition system may be fitted. A positive acting cut out switch must be fitted, and attached to the top yoke or handlebars. Ignition kill buttons are not acceptable (Streetbike Series exempt). For Super Street Bike, Super Street Twins, Pro-Stock, Super Twin Top Gas, Competition Bike, and Super Twin Top Fuel where applicable, all machines must have a possessive kill switch attached to the rider by a lanyard which will also kill nitrous oxide systems. (Ignition cut-out systems exempt for engines running nitro. See chapter 3.)

SUPPORT GROUP: 8

Computers/Data recorders: Computers are only allowed for engine management control (fuel injection and ignition). Throttle operation, shifting, clutch activation etc. are to be solely under control of the rider. Any kind of traction controls is strictly forbidden. Data recorders may be used to record functions on a motorcycle, so long as they do not activate any function on the vehicle. Data recorders may not be activated by the throttle, clutch, brake, etc. mechanism, or by the Christmas Tree, radio transmitters, sensing of wheel speed, inertia, laser device, or transmission of track position. It must be activated by a separate switch. Fifth wheel sensing devices prohibited on all vehicles (including wheelie bar). All lines sensing flow, pressure, etc., of fuel or oil must be metallic or steel braided. Transmission or display of data gathered or processed by data recorder, to the driver or any remote location prohibited. Data may only be reviewed (print out, replay, etc.) after the run.

RIDER: 9

Eligibility: For National Competitions, Entrants and riders must hold a current competition license for National or International events issued by the KNMV, or a European “A” license issued by EU Federations or Associates.

A KNMV one-day license can be bought at the racing secretary, prior to each event, one per driver each season.

Protective clothing: It’s not advised that bulky objects such as tools etc. are carried in pockets or on the person. During practice and racing, riders must wear the following clothing and footwear:

Competitors must wear a complete leather suit of at least 1.2 mm in thickness (on all parts of the suit). Two piece suits that zip together at the waist are acceptable. Non-leather material may be used if it meets with the requirements laid down by the FIM in article 65.07 (see below). The following areas must be padded with at least a double layer of leather or enclosed plastic foam at least 8 mm thick: – Shoulders – Elbows – Both sides of the torso and hipjoint – The back of torso – Knees.

Competitors must wear complete undergarments if they use suits which are not lined. Suitable undergarments may be of the NOMEX type, they may also be of silk or simply cotton. Synthetic materials which may melt and which could harm the riders skin in an accident are not allowed, neither for the suit nor for the undergarments.

Competition footwear must be of leather (i.e. outher hide) or an approved substitute material and of a minimum height of the ankle joint to provide, with the suit, complete protection i.e. no exposed areas.
Competitors must wear leather protective gloves. The fabric or substance of all clothing and it’s lining must be tested and certified by an official scientific institute taking into account the fire and wear resistant qualities of all parts of the clothing which come into direct contact with skin. It must be non-flammable.

Helmets: For standing regulations regarding helmets see article 16.03 through 16.04 of KNMV.

Fire extinguishers: All competitors, with the exemption of those traveling to an event on the machine on which they are competing, must have a 2 kg (minimum) dry powder fire extinguisher available for immediate use. If a ‘’closed vehicle” is being used, the extinguisher must be fitted adjacent to, or on the inside of the working door. In the case of a shared vehicle the other competitor extinguisher(s) should also be visible, or, the fitted extinguisher(s) must be of a proportionally larger capacity.

• FIM Article 65.07 – Material equivalent to leather

The following characteristics of the material must be at least equivalent to 1.5 mm of cowhide (not split leather).

– Fire retardant quality;

– Resistance to abrasion;

– Coefficient of friction against all types of asphalt;

– Perspiration adsorbing qualities;

– Medical test;

– Non toxic and non allergic;

– Fabric of a quality that does not melt.


Junior bikes

Ages 10 – 12

Ages 13 – 18

Reserved for all “street legal” or “non-street legal” (stock or make) single or twin cylinder motorcycles with any frame configurations. Rider and motorcycle size must conform to each other. All races are limited to 1/8th mile. Ages 10 – 12 are restricted to run 12.90 ET or slower. Ages 13 – 18 are restricted to run 8.90 ET or slower. All races will be run on an ET dial in basis.

Requirements and Specifications:

ENGINE: Any name brand, make or model. Must be single or twin cylinder engine. Any configuration and engine is legal as long as the Tech Inspector approves it. Small engine modifications are legal such as: exhaust, air cleaners and carburetor. Engine must retain stock design.

FUEL: Only general available road fuels allowed. Nitrous oxide is not allowed.

DRIVE TRAIN: Must have chain or belt guard for primary and secondary drives.
May be any variety or manufactured transmission with any number or speeds. Must be approved by Tech Inspector.
May have any variety of manufactured clutch. May have automatic or manual clutch. Belt drives are legal. Rear wheel drives may consist of any ratios and materials. Air shifters are allowed.

SUSPENSION AND BRAKES: Front and rear brakes mandatory (disc or drum).

Front suspension minimum size 28 mm and minimum travel of 2 inches. Rear suspension not necessary. Struts allowed.
Handlebar controls must be located in safe, workable position. Footpegs and foot controls should be located in safe, workable position and must be mounted in a safe, craftsman-like manner. All controls must meet or exceed OEM equipment standards.

FRAME:
Must be purpose built and of tubular construction utilizing a rigid rear end. Any oem style and material frame is allowed. If Purpose build the frame must been made off chrome molly tubing. Frame must meet Tech Inspector’s approval. Wheel base is unlimited.
The ground clearance minimum size of 50 mm with rider on bike and 10 p.s.i. in rear tire (includes exhaust and kickstand).
Rider must be able to reach all controls safety and able to place both feet flat on the ground.

Wheelie bars are highly recommended.

WHEELS AND TIRES:
Tires: any make or size. Slicks are permitted.
Wheels: any make or size are permitted.

BODY:

Must have rear mudguard or body work extending past the rear axle. Stock OEM fenders and gas tank, or custom fenders and gas tanks are allowed, but must be mounted and constructed in a safe, craftsman-like manner.
The seat must be securely attached so as to prevent the rider from sliding backwards.

ELECTRICAL:
Any ignition system is allowed.
Starting systems are electric, kick or with external starter. No push or roller starts.
Control switches must be mounted and constructed in a safe, craftsman-like manner. There must be an emergency kill switch.

Only data gathering computers are allowed.
Lights are not necessary.

RIDER:
Helmets are full face only. Refer to Helmet section of hand book.
Protective clothing are leather jacket, full-finger leather gloves and hi-top leather shoes or boots.

TECH:

Tech Inspector or Tech Official will have final say on any unclear rule or equipment.


 

Additional regulations Pro Scooter

Racing distance limited to 1/8 mile. Competitors must be 16 years over.

Designation: PS-, preceded by rider number .

1. Definition: This class will be for mopeds- or scooters, modified for dragracing.

2. Engine: Must be of a type specifically designed and manufactured for a production moped or scooter with 50 cc displacement. May be of other make or type. If liquid cooling is used: only watercooling allowed. No factory-racing or crosser engines allowed. Capacity restrictions: Maximum 90 cc. Stroke of engine may not be altered.

3. Fuel: Only general available road fuels allowed. Only lubricating 2-stroke additives allowed.

4. Fueltank: Must be securely attached to frame.

5. Exhausts: Working muffler required.

6. Frame: Any type allowed. Must be of sound construction. Control devices must fitted securely. No sharp edges allowed. If a fairing is added, it must be fitted securely.

7. Clutch: Operation by rider only. Lock-up systems allowed if fitted in stock housing. Clutch-cover spacers allowed.

8. Gearbox: If engine has no 5- or 6 speed gearbox as OEM, casings may be replaced to allow 5 or 6 gear boxes to be used. No external gear box al­low­ed. Automatic or semi-automatic boxes prohibited, unless OEM. Maximum of 6 gears allowed. Electro- or airshifters allowed. Front chain-drive spro­cket must be covered.

9. Carburetor: Any type of carburetor may be used. Type of 2-stroke induction system may be altered.

10. Supercharger and turbocharger: Not allowed.

11. Nitrous oxide: Not allowed.

12. Electrical: Any ignition system allowed.

13. Lights: Lenses must be taped over. Mirrors and indicators must be removed or taped over. License plates must be removed.

14. Seats: Any type allowed. Must be securely fitted to the machine. Any padding must be securely attached to the seat.

15. Mudguards: Allowed. Must be securely fitted.

16. Chainguard: Mandatory. Scrutineer decides about safety.

17. Stands: Must be securely fitted with a spring or other wise wired up or removed.

18. Front suspension: Must be operational. Any make or type allowed. Lo­wer­ing of tubes through yokes allowed, as long as travel or steering is unaffected.

19. Rear suspension: Any make or type allowed. Modified swinging arm, ­struts, or hard-tail frame allowed.

20. Brakes: Working front- and rear brakes mandatory.

21. Wheels: Minimum 12” diameter.

22.Tyres: : Readily available motorcycle street tyres only, 1.5 mm minimum ­tread depth measured before start of racing event. Tyres that have manufactory wear indicators like MT are worn when the tire and indicator are level .Slicks, hand cut slicks and tyres marked ‘Not for highway use’ not allowed. Any tyre which, in the opinion of the scrutineer, bears any ­signs of having sidewall markings or lettering tampered with, will be grounds for immediate exclusion of the rider from the event.

23. Wheelie bars: Allowed.

24. Protective clothing: Mandatory is: Helmet certified for street use, and gloves. Clothing must be presented for scrutineering.


Additional regulations Street Bike

An index applies for SB: 6.700 s @ 1/8 mile

10.500 s @ ¼ mile

Designation: SB-, preceded by rider number .

1. Definition: This class will be for street certified motorcycles, with minor modifications for dragracing. A valid road registration must be presented.

2. Engine: Must be of a type specifically designed and manufactured for a production motorcycle. May be of other make or type. Starting system must be internal- or kick. No external starters allowed.

3. Fuel: Only general available road fuels allowed.

4. Fueltank: Must be securely attached to frame with rubber mounts. Dummy tanks not allowed, unless OEM.

5. Exhausts: Muffler(s) required at 98 dBA tracks.

6. Frame: Aftermarket frames allowed if registered. Maximum wheelbase permitted is 65”/1650 mm,. Ground clearance with rider on bike: 80 mm minimum. Minimum handlebar width: 500 mm. Turning arc not to exceed stock travel. Control devices fitted must be for use on public highway.

7. Clutch: Operation by rider only. Lock-up systems allowed if fitted in stock housing. Clutch-cover spacers allowed.

8. Gearbox: Only gearboxes fitted in stock housing allowed. Automatic or semi-automatic boxes prohibited, unless OEM. Electro- or airshifters allowed.

9. Carburettor: Any type of carburetor or fuel injection may be used.

10. Supercharger and turbocharger: Not allowed unless OEM.

11. Nitrous oxide: Not allowed.

12. Electrical: Any ignition system allowed. Charging system mandatory.

13. Lights: Working head- and taillight(s) mandatory. Lenses must be taped over. Mirrors and indicators must be removed or taped over. License plates must be removed.

14. Seats: Any type allowed. Must be securely fitted to the machine. Any padding must be securely attached to the seat.

15. Mudguards: Must be fitted.

16. Chainguard: Mandatory. Scrutineer decides about safety.

17. Stands: Must be securely fitted with a spring or athore wise wired up or removed.

18. Front suspension: Any make or type allowed. Minimum inner tube diameter: 35 mm or stock. Length not less than stock length minus 50 mm. Minimum travel: 100 mm or stock. Lowering of tubes through yokes allowed, as long as minimum travel or steering is unaffected.

19. Rear suspension: Any make or type allowed. Suspension has to be operational. Struts prohibited.

20. Brakes: Working front- and rear brakes mandatory. Minimum disc diameter 180 mm. Minimum 3.5 mm thickness or stock. Drilling of cast-iron discs prohibited. Drum-brakes must be of double working type and minimum 200 mm diameter. Overall braking capacity must correspond with weight and power of motorcycle.

21. Wheels: Only wheels intended for motorcycle use, stock or aftermarket, allowed. Rear rim should not exceed tyre width.

22.Tyres: : Readily available motorcycle street tyres only, 1.5 mm minimum ­tread depth measured before

start of racing event. Tyres that have manufactory wear indicators like MT are worn when the tire and

indicator are level .Slicks, hand cut slicks and tyres marked ‘Not for highway use’ not allowed. Any

tyre which, in the opinion of the scrutineer, bears any ­signs of having sidewall markings or lettering

tampered with, will be grounds for immediate exclusion of the rider from the event.

•  Wheelie bars: Not permitted on Streetbike.

•  Protective clothing: Mandatory is: Helmet for motorcycle use, leather jacket, trousers, gloves and boots, minimum above ankle joint high. Clothing must be presented for scrutineering.


 

Additional regulations Street Twin

Designation: ST-, proceded by rider number .

1. Definition: This class will be for street certified, two cylinder motorcycles, with limited modifications for dragracing. A valid road registration must be presented.

2. Engine: Must be a maximum two cylinder type, specifically designed and manufactured for a production motorcycle. May be of other make or type. Capacity restrictions: Maximum 98 CI/1606 cc. Starting system must be internal- or kick. No external starters allowed.

3. Fuel: Only general available road fuels allowed.

4. Fueltank: Must be securely attached to frame with rubber mounts. Dummy tanks not allowed, unless OEM.

5. Exhausts: Muffler(s) required at 98 dBA tracks.

6. Frame: Aftermarket frames allowed if registered. Maximum wheelbase permitted is 68”/1730 mm. Oem Frames that have a standard longer wheelbase than 68”/1730 mm (like the V Rod en Kawasaki meansteak)are allowed.

Ground clearance with rider on bike: 80 mm minimum. Minimum handlebar width: 500 mm. Turning arc not to exceed stock travel.

Control devices fitted must be for use on public highway.

7. Clutch: Operation by rider only. Lock-up systems allowed if fitted in stock housing. Clutch-cover spacers allowed.

8. Gearbox: Only gearboxes fitted in stock housing allowed. Automatic or semi-automatic boxes prohibited, unless OEM. Electro- or airshifters not allowed. Electronic ignition-cutout systems (Quickshifters, powershifters etc.) allowed.

9. Carburettor: Any type of carburettor or fuel injection may be used.

10. Supercharger and turbocharger: Not allowed unless OEM.

11. Nitrous oxide: Not allowed.

12. Electrical: Any ignition system allowed. Charging system mandatory.

13. Lights: Working head- and taillight(s) mandatory. Lenses must be taped over. Mirrors and indicators must be removed or taped over. License plates must be removed.

14. Seats: Any type allowed. Must be securely fitted to the machine. Any padding must be securely attached to the seat.

15. Mudguards: Must be fitted.

16. Chainguard: Mandatory. Scrutineer decides about safety.

17. Stands: Must be securely fitted with a spring or athore wise wired up or removed.

18. Front suspension: Any make or type allowed. Minimum inner tube diameter: 35 mm or stock. Length not less than stock length minus 50 mm. Minimum travel: 100 mm or stock. Lowering of tubes through yokes allowed, as long as minimum travel or steering is unaffected.

19. Rear suspension: Any make or type allowed. Suspension has to be operational. Struts prohibited.

20. Brakes: Working front- and rear brakes mandatory. Minimum disc diameter 180 mm. Minimum 3.5 mm thickness or stock. Drilling of cast-iron discs prohibited. Drum-brakes must be of double working type and minimum 200 mm diameter. Overall braking capacity must correspond with weight and power of motorcycle.

21. Wheels: Only wheels intended for motorcycle use, stock or aftermarket, allowed. Rear rim should not exceed tyre width.

22.Tyres: : Readily available motorcycle street tyres only, 1.5 mm minimum ­tread depth measured before

start of racing event. Tyres that have manufactory wear indicators like MT are worn when the tire and

indicator are level . Slicks, hand cut slicks and tyres marked ‘Not for highway use’ not allowed. Any

tyre which, in the opinion of the scrutineer, bears any ­signs of having sidewall markings or lettering

tampered with, will be grounds for immediate exclusion of the rider from the event.

•  Wheelie bars: Not permitted on Streettwin.

•  Protective clothing: Mandatory is: Helmet for motorcycle use, leather jacket, trousers, gloves and boots, minimum above ankle joint high. Clothing must be presented for scrutineering.


 

Additional regulations Ultimate Street Bike

An index applies for USB: 6.000 s @ 1/8 mile

9.500 s @ ¼ mile

Designation: USB-, proceded by rider number .

1. Definition: This class will be for street certified motorcycles, with limited modifications for dragracing. A valid road registration must be presented.

2. Engine: Must be of a type specifically designed and manufactured for a production motorcycle. May be of other make or type. Starting system must be internal- or kick. No external starters allowed.

3. Fuel: Only general available road fuels allowed.

4. Fueltank: Must be securely attached to frame with rubber mounts. Dummy tanks not allowed, unless OEM.

5. Exhausts: Muffler(s) required at 98 dBA tracks.

6. Frame: Aftermarket frames allowed if registered. Maximum wheelbase permitted is 68”/1730 mm. Ground clearance with rider on bike: 80 mm minimum. Minimum handlebar width: 500 mm. Turning arc not to exceed stock travel. Control devices fitted must be for use on public highway.

7. Clutch: Operation by rider only. Lock-up systems allowed if fitted in stock housing. Clutch-cover spacers allowed.

8. Gearbox: Only gearboxes fitted in stock housing allowed. Automatic or semi-automatic boxes prohibited, unless OEM. Electro- or airshifters allowed.

9. Carburettor: Any type of carburettor or fuel injection may be used.

10. Supercharger and turbocharger: Allowed.

11. Nitrous oxide: Allowed.

12. Electrical: Any ignition system allowed. Charging system mandatory.

13. Lights: Working head- and taillight(s) mandatory. Lenses must be taped over. Mirrors and indicators must be removed or taped over. License plates must be removed.

14. Seats: Any type allowed. Must be securely fitted to the machine. Any padding must be securely attached to the seat.

15. Mudguards: Must be fitted.

16. Chainguard: Mandatory. Scrutineer decides about safety.

17. Stands: Must be securely fitted with a spring or athore wise wired up or removed.

18. Front suspension: Any make or type allowed. Minimum inner tube diameter: 35 mm or stock. Length not less than stock length minus 50 mm. Minimum travel: 100 mm or stock. Lowering of tubes through yokes allowed, as long as minimum travel or steering is unaffected.

19. Rear suspension: Any make or type allowed. Suspension has to be operational. Struts prohibited.

20. Brakes: Working front- and rear brakes mandatory. Minimum disc diameter 180 mm. Minimum 3.5 mm thickness or stock. Drilling of cast-iron discs prohibited. Drum-brakes must be of double working type and minimum 200 mm diameter. Overall braking capacity must correspond with weight and power of motorcycle.

21. Wheels: Only wheels intended for motorcycle use, stock or aftermarket, allowed. Rear rim should not exceed tyre width.

22.Tyres: : Readily available motorcycle street tyres only, 1.5 mm minimum ­tread depth measured before

start of racing event.Tyres that have manufactory wear indicators like MT are worn when the tire and

indicator are level .Slicks, hand cut slicks and tyres marked ‘Not for highway use’ not allowed. Any

tyre which, in the opinion of the scrutineer, bears any ­signs of having sidewall markings or lettering

tampered with, will be grounds for immediate exclusion of the rider from the event.

•  Wheelie bars: Not permitted on Ultimate Streetbike.

•  Protective clothing: Mandatory is: Helmet for motorcycle use, leather jacket, trousers, gloves and boots, minimum above ankle joint high. Clothing must be presented for scrutineering.



Additional regulations Super Street Bike

Designation: SSB-, proceded by rider number .

1. Definition: This class will be for stock appearance (factory produced motorcycles available to the general public, modified for drag racing) gasoline burning motorcycles.

2. Engine: May be of any type with any modifications. Only one engine allowed.

3. Frame: Steering head geometry, trail and wheelbase may be altered to improve the stabilty of the machine, provided that all modifications are undertaken to a safe and professional standard. Maximum wheelbase permitted is 1730 mm. Ground clearance with rider on bike and minimum 6 psi rear tire pressure: 50 mm minimum. Minimum handlebar width: 500 mm

4. Clutch: Any type, make or pattern may be installed. All clutches must be fully enclosed.

5. Gearbox: Any make or type may be fitted.

6. Carburettor: Any type of carburettor or fuel injection may be used.

7. Superchargers and turbochargers: Allowed.

8. Nitrous oxide injection: Allowed.

9. Lights: Lights need not be operational, but must be of stock appearance. Lenses must be taped over. Mirrors should be removed.

10. Seats: Any type allowed. Must be securely fitted to the machine. Any padding must be securely attached to the seat.

11. Mudguards: Must be fitted like on streetbike.

•  Stands: Must be securely fitted with a spring or athore wise wired up or removed.

•  Suspension: Any type allowed, but if fitted must be operational. Rear ­struts allowed.

14. Wheels: Any type or size allowed, as long as intended for motorcycle use. It’s highly recommended that rear rim width should not exceed tyre width

15. Tyres: Readily available motorcycle street tyres only, 1.5 mm minimum ­tread depth measured before start of racing event. Tyres that have manufactory wear indicators like MT are worn when the tire and indicator are level .Slicks, hand cut slicks and tyres marked ‘Not for highway use’ not allowed. Any tyre which, in the opinion of the scrutineer, bears any ­signs of having sidewall markings or lettering tampered with, will be grounds for immediate exclusion of the rider from the event.

•  Wheelie bars: Not permitted on Super Street Bike.


 

Additional regulations Super Street Twins

Designation: SST-, proceded by rider number .

1. Definition: This class will be for stock appearance (factory produced, maximum two cylinder motorcycles available to the general public, modified for drag racing) gasoline burning motorcycles.

2. Engine: Must be of a type specifically designed and manufactured for a production motorcycle. Only one engine with maximum two cylinders may be used. Capacity restrictions: Maximum 126 CI/2065 cc (normally aspirated). Aftermarket engine cases may be used. Aftermarket cylinderheads may be used. Cylinders without cooling fins are not allowed. Starting system must be internal- or kick. No external starters allowed. Engine must be oiltight (i.e. all valvetrain components enclosed).

3. Exhausts: May not end behind rear wheel. May not end before footpegs, unless bending outwards.

4. Frame: Aftermarket frames allowed. Steering head geometry, trail and wheelbase may be altered to improve the stability of the machine, provided that all modifications are undertaken to a safe and professional standard. Steering head angle may not be less than stock rake or more than 40 de­grees maximum rake. Maximum wheelbase permitted is 70”/1780 mm. Ground clearance with rider on bike and minimum 6 psi rear tire pressure: 50 mm minimum. Minimum handlebar width: 500 mm.

5. Clutch: Stock based clutch mandatory. Lock-up systems allowed. Sliderclutch not allowed.

6. Gearbox: Only gearboxes with stock outer-housing design allowed. Aftermarket gears with any ratios may be used. Electro- or airshifters allowed.

7. Carburettor: Any type of carburettor or fuel injection may be used.

8. Superchargers and turbochargers: Allowed. Engine capacity restricted to stock engine displacement.

9. Nitrous oxide: Allowed. Engine capacity restricted to stock engine displacement.

10. Electrical: Any ignition system allowed. Charging system not mandatory.

11. Lights: Lights need not be operational, but must be of stock appearance. Lenses must be taped over. Mirrors and indicators should be removed.

12. Seats: Any type allowed or stock with a step to prevent the rider from sliding backwards. Any padding must be securely attached to the machine.

13. Mudguards: Must be fitted like on streetbike.

14. Stands: Must be securely fitted with a spring or athore wise wired up or removed.

15. Front suspension: Any type allowed. Minimum travel: 50 mm. Minimum telescopic frontfork inner tube diameter: 34 mm. Fork tubes may not extend above the top yoke without a cover.

•  Rear suspension: Any type allowed, but if fitted must be operational. Rear struts allowed.

17. Wheels: Only wheels intended for motorcycle use, stock or aftermarket, allowed. Rear rim should not

exceed tyre width.

•  Tyres: Readily available motorcycle street tyres only, 1.5 mm minimum ­tread depth measured before start of racing event. Tyres that have manufactory wear indicators like MT are worn when the tire and indicator are level .Slicks, hand cut slicks and tyres marked ‘Not for highway use’ not allowed. Any tyre which, in the opinion of the scrutineer, bears any ­signs of having sidewall markings or lettering tampered with, will be grounds for immediate exclusion of the rider from the event.

19. Wheelie bars: Not permitted on Super Street Twin



Additional regulations Funny Bike

Designation: FB-, proceded by rider number.

1. Alignment: Sufficient trail must be incorporated to ensure proper handling. Recommended is 6 inches.

2. Clutch and primary transmission: Any type, make or pattern of clutch assembly and/or drive chain/belt may be installed. If the clutch and/or primary transmission is exposed, it must be fitted with a guard as a safety mea­sure to protect the rider even as a result of breakage. The guard must be conceived in such a manner that under no circumstances can the rider come into accidental contact with these transmission parts. It must be designed to protect the rider from injuring fingers. Outboard mounted clutches must have a cover of at least 3 mm aluminium or 1 mm steel. Cruciform ­guards are not permitted. Slider clutches must be manufactured from billet rather than cast materials and the guards must have a minimum of 4 mounting bolts of 6 mm diameter.

3. Engine: Engine or engines may be of any internal combustion type, provided that drive is transmitted through one wheel. Engine(s) may be mounted in any position, and any modifications are permitted. Stock cases permitted; aftermarket cases are highly recommended.

4. Exhaust: Any make or type of exhaust allowed. No flexibele pipe allowed.

5. Frame: Frame may be original factory equipment, altered or modified at the owners discretion, or of tubular type frame construction. All butt welds must have visible reinforcement and no grinding of filling of welds is allowed. It’s not allowed to use the engine as a stressed member of the frame.

6. Ground clearance: Ground clearance with rider on bike and minimum 6 psi rear tire pressure: 50 mm minimum

7. Mudguards: All bikes must have front and rear fenders. must be constructed of material with no sharp edges and must be

securely fitted to the machine .

8. Seats: Must be securely fitted to frame, and be constructed as to prevent slipping backwards from the proper riding position. Any padding used must be securely attached.

9. Superchargers: Turbos and blowers will be considered the same. May be fitted at the owners discretion. It’s recommended that a guard be fitted over the belt drive on superchargers mounted in front of the engine. Where a supercharger is mounted behind the engine, such a guard is mandatory. Where a supercharger is chain driven, guards of 3 mm thick DURAL or equivalent strength material, are a minimum requirement, in respective of the position of the unit. Explosion proof blankets fully surrounding the supercharger are highly recommended.

10. Body Body Must run a similar to stock body Entire bike must resemble the stock appearance

11. Suspension: The minimum front fork stanchion diameter is as follows:

Maximum bike weight: Minimal tube diameter:

136 kg 28 mm

158 kg 30 mm

204 kg 32 mm

over 204 kg 35 mm

•  Front tyre: Front tyres to be of racing type or, if of road type, minimum specification “V”-rated.

•  Wheels: All wire spoked wheels must utilize steel spokes of adequate strength and properly laced. Wheels manufactured for cars may be used providing the fitting to the machine is of sound engineering. All wheels must run through and all bearings must be in good condition. Wheel spin­dle nuts must be secured. BRAKES Minimums: Front: dual, 230 mm diameter, or single disc of minimum 295 mm diameter All brake lines are to be steel braided .Max tire width 13 inch slick.

•  Chains: Chain should be of closed type without masterlink, or the masterlink should be safetywired or saved by silicone. Chainguard must have length till the end of rear sprocket.

15. Wheelbase: At the owners discretion.

16. Wheelie bar: : Wheelie bars are highly recommended. Mandatory on motorcycles using nitrous oxide. Maximum length may be equal to, but not exceed, the wheelbase of the motorcycle. Wheelie bar length is measured from center of rear axle to center of wheelie bar wheel(s). Wheels must be non-metallic.

17.Fuel and fuel system: Pump or racing gasoline generally available allowed. Methanol allowed. Nitrous

oxide allowed .Octane boosters allowed. Water injection allowed. Nitromethane strictly prohibited. Steel

braided fuel lines are mandatory on all pump driven fuel systems. Dual cable positive return throttle are

mandatory. All non-braided fuel lines must be fastened with a metal clamp,band or fitting (no wire). Be

careful not to over tighten.


 

Additional regulations Competition Bike

Designation: CB-,proceded by rider number.

1. Alignment: Sufficient trail must be incorporated to ensure proper handling. Recommended is 6 inches.

2. Clutch and primary transmission: Any type, make or pattern of clutch assembly and/or drive chain/belt may be installed. If the clutch and/or primary transmission is exposed, it must be fitted with a guard as a safety mea­sure to protect the rider even as a result of breakage. The guard must be conceived in such a manner that under no circumstances can the rider come into accidental contact with these transmission parts. It must be designed to protect the rider from injuring fingers. Outboard mounted clutches must have a cover of at least 3 mm aluminium or 1 mm steel. Cruciform ­guards are not permitted. Slider clutches must be manufactured from billet rather than cast materials and the guards must have a minimum of 4 mounting bolts of 6 mm diameter.

3. Engine: Engine or engines may be of any internal combustion type, provided that drive is transmitted through one wheel. Engine(s) may be mounted in any position, and any modifications are permitted.

4. Exhaust: Any make or type of exhaust allowed. No flexibele pipe allowed.

5. Frame: Frame may be original factory equipment, altered or modified at the owners discretion, or of tubular type frame construction. All butt welds must have visible reinforcement and no grinding of filling of welds is allowed. It’s not allowed to use the engine as a stressed member of the frame.

6. Ground clearance: Ground clearance with rider on bike and minimum 6 psi rear tire pressure: 50 mm minimum.

7. Mudguards: Are not compulsory, but if fitted must be of material with no sharp edges, and must be securely fitted to the machine. If a stock front mudguard is removed and an aftermarket item is used, a fork brace of adequate dimensions must be fitted on machines weighing 205 kg and over.

8. Seats: Must be securely fitted to frame, and be constructed as to prevent slipping backwards from the proper riding position. Any padding used must be securely attached.

9. Superchargers: May be fitted at the owners discretion. It’s recommended that a guard be fitted over the belt drive on superchargers mounted in front of the engine. Where a supercharger is mounted behind the engine, such a guard is mandatory. Where a supercharger is chain driven, guards of 3 mm thick DURAL or equivalent strength material, are a minimum requirement, in respective of the position of the unit. Explosion proof blankets fully surrounding the supercharger are highly recommended.

10. Suspension: The minimum front fork stanchion diameter is as follows:

Maximum bike weight: Minimal tube diameter:

136 kg 28 mm

158 kg 30 mm

204 kg 32 mm

over 204 kg 34 mm

11. Front tyre: Front tyres to be of racing type or, if of road type, minimum specification “V”-rated.

•  Wheels: All wire spoked wheels must utilise steel spokes of adequate strength and properly laced. Wheels manufactured for cars may be used providing the fitting to the machine is of sound engineering. All wheels must run through and all bearings must be in good condition. Wheel spin­dle nuts must be secured. BRAKES Minimums: Front: dual, 230 mm diameter, or single disc of minimum 295 mm diameter All brake lines are to be steel braided

•  Chains: Chain should be of closed type without masterlink, or the masterlink should be safetywired or saved by silicone. Chainguard must have length till the end of rear sprocket.

14. Wheelbase: At the owners discretion.

15. Wheelie bar: Wheelie bars are highly recommended. Mandatory on motorcycles using nitrous oxide. Maximum length may be equal to, but not exceed, the wheelbase of the motorcycle. Wheelie bar length is measured from center of rear axle to center of wheelie bar wheel(s). Wheels must be non-metallic.



Additional regulations Super Twin Top Gas

Designation: STG-, proceded by rider number.

1. Engine: Only 2 cylinder four stroke and two stroke engines allowed. No displacement limit. Car engines are only allowed if the motorcycle is constructed so the weight and weight distribution is similar to a motorcycle with a motorcycle engine.

2. Fuel: Only general available gasoline allowed. No Nitrous Oxide or Alcohol.

3. Brakes: Motorcycles must be equipped with two independent brakes, working on two wheels. Disc brake minimum diameter 175 mm, drum brake diameter 150 mm. Motorcycles over 500 cc must have front disc brake. Minimum 250 mm diameter, 4 mm thick for single disc, or 220 mm diameter, 4 mm thick for dual rotor front brake.

4. Wheels: The motorcycle must be equipped with a front wheel made for motorcycles. The rear rim should not be more than 50 mm narrower than contact surface of rear tyre. The minimum front rim width should be 1”. Minimum diameter 16”. Wheel spindle nuts must be secured.

5. Tyres and tubes: Tyres should be slick type, or have a minimum tread depth of 2.0 mm. Motorcycles exceeding 200 km/h should have front tyres with at least ‘V’-rating, or be of natural rubber, racing type.

6. Frames: Stress bearing tubes in the frame should be at least 20 x 1.5 mm. If a single backbone tube is used, it should be at least 50 mm. The engine should not be a stressed part of the frame. The engine should be located so that a safe weight distribution is achieved.

7. Ground clearance: Minimum ground clearance with rider in position, proper tyre pressure and fork completely compressed is 50 mm. It must be possible to lean the motorcycle 12 degrees to each side from the upright position, without any part of bike, except the wheels, touching the ground.

8. Front suspension: The front fork must be of the hydraulic type. Fork tubes may not extend more than 30 mm above the top fork crown. Minimum stroke is 50 mm. No part of bike, except the wheels, may touch the ground with the forks bottomed. Inner tubes minimum diameter is 34 mm.

9. Seats: Seats must be constructed to give the rider a safe riding position, and must not be dangerously uncomfortable.

10. Wheelie bars: Wheelie bars are required in Supertwin Top Gas. Wheels should be non-metallic.

•  Superchargers: May be fitted at the owners discretion. It’s recommended that a guard be fitted over the belt drive on superchargers mounted in front of the engine. Where a supercharger is mounted behind the engine, such a guard is mandatory. Where a supercharger is chain driven, guards of 3 mm thick DURAL or equivalent strength material, are a minimum requirement, in respective of the position of the unit. Explosion proof blankets fully surrounding the supercharger are highly recommended.

•  Chains: Chain should be of closed type without masterlink, or the masterlink should be safetywired or saved by silicone. Chainguard must have length till the end of rear sprocket.

 


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