Race Classes and Rules

Motolites/Superlites

2008 Bucket Racing Rules

Superlite Rules

1) Classes:
One Class, 111cc 2 Stroke & 159cc 4 stroke maximum capacities.
An engine tolerance of 2% is included within these capacities.
There are two grades: Pro Class & Amateur Class

2) Frames:
Frames shall be from homologated, non-competition, Road or Trail machines only. Frames shall be twin shock design only (ie: No single shock frames to be used).

Frames currently homologated are as follows:
Bridgestone: 90/100
Honda: CB100/125/175 K, J, S, N, T; XL100/125/175/185, SL100/125, H100, MT125, CT100/125/185
Kawasaki: KH100/125, G4, G7, KE100/125 KV100, KM100
Suzuki: GP100/125, A100, TS100/125, TF100/125, GS125, DR125, GT125, TC100/125,
Yamaha: DX100, DT100/125/175, RX100/125, LS1, LS3, RD125, RT100, AS3, YL1, YB1
Only minor modifications may be made to the frame to allow the fitment of seat, triple clamps (steering stops), shock mount positions, or fuel tanks. The addition of bracing and removal of unnecessary brackets. No restrictions on the use of swing arms. Frame must remain in the original configuration & only twin shock frames to be used. (ie: no single shock frames permitted).

2a) Frame Modifications: The decision as to whether a modification is to be regarded as minor is to be determined by the BRA committee. Persons are directed to contact the BRA committee to seek a determination as to whether a modification is eligible.

3) Forks: Forks must be no larger than 33mm in diameter.

4) Engines: Heads, barrels & crankcases
Shall be from homologated non-competition Road or Trail machines only. The following are currently homologated:
Bridgestone: 90/100
Honda: CB100/125/175 K,J,S,N,T SL100/125, H100, MT125, CT/125/185/200, XL100/125/175/185/200, ATC200 XR200
Kawasaki: KH100/125, G4, G7, KE100/125 KV/KM100
Suzuki: GP100/125, A100, TS100/125, TF100/125, GS125, DR125, GT125, TC100/125, DFI25, DR200, TLF200 (Head & Cylinder only)
Yamaha: DX100, DT100/125/175, RX100/125, LS1, LS3, RD125, XT125, RT100, AS3, YL1, YB1
(Only 2 valves per cylinder are permitted on 4 strokes)

Engine Modifications
4A) 4 Stroke Cylinder Head Modifications:
4Ai) 4 stroke cylinder heads shall remain in original configuration.
Ie: Valves shall remain original angles & position and shall remain standard sizes only
(No larger valves to be fitted)
4Aii) Porting is permitted.
4B) 2 Stroke Cylinder Modifications:
2 Stroke Barrels/ Cylinders shall be restricted to an Exhaust port width of 70% of bore diameter with the standard number of ports.

5) Brakes:
Brake modification is permitted. Disc brakes are limited to single or twin piston callipers only.

6) Tyres:
Tyres to be readily available in Australia; No Slicks or Wet Racing tyres; Tyres are to be as they left the manufacturer, No Modifications (ie. No (regrooving) Maximum Tyres sizes are restricted to a width of 100 section. Eg 100/80 x17

7)Fuel:
Shall be as per GCR's No additives or (octane boosters) other than oil for lubrication.

8) Induction:
Induction will be by carburettors only. (28 mm Carburettor Maximum on 2 strokes) (Standard Carburettors only on Honda CB125T models) No fuel injection. No forced air induction.

9)Fairings:
No Full Fairings. No fairings below the top of the crankcases.

10) The implementation and enforcement of the BRA Racing Rules is governed by the BRA committee. Penalties for non-compliance will be determined by the committee.

RANDOM FUEL CHECKS CAPACITY CHECKS, 2 STROKE CYLINDER INSPECTIONS, 4 STROKE HEADS & CAMSHAFT INSPECTIONS WILL BE CARRIED OUT DURING THE YEAR.

Motolites Racing Rules

1) Classes: One class combining:
111cc Air cooled 2 stroke
85cc Watercooled 2 stroke (MX 80's no powervalves)
159cc 4 valve single cylinder 4 stroke
185cc 2 valve single cylinder 4 stroke
159cc 2 valve twin cylinder 4 stroke
200cc 2 valve air cooled single cylinder 4 stroke with a maximum size carburettor of 28mm
These capacities are maximum sizes, a tolerance of 2% is included within these capacities.
Open to any grade of rider.

2) Engines: Choice of engine is open. Any engine conforming to capacity & valve constraints under "Classes" section 1. Exception: No Road Race / GP or hand built engines.

3) Forks: Forks may be of any diameter, Conventional or upside down.

4) Frames: Frames are open.

5) Brakes: Brake modifications are permitted.

6) Tyres: Tyres to be readily available in Australia. No Slicks, Intermediates or Wet weather racing tyres. Tyres are to be as they left the manufacturer. (ie: No regroving).

7) Fuel: Shall be as per GCR's only.
The implementation and enforcement of the BRA Racing Rules is governed by the BRA committee. Penalties for non-compliance will be determined by the committee.

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New Era

Click here for the 2008 New Era Rules