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2008 Motolite Rules

  1. Classes One class combining:
    - 111cc Air cooled 2 strokes
    - 85cc Water cooled 2 strokes
    - 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 is open.

  5. Brakes: Brake modification is 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.

2008 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: CB 100/125/175 K,J,S,N,T; XL 100/125/175/185, SL 100/125, H 100, MT 125, CT 100/125/185

    - Kawasaki: KH 100/125, G4, G7, KE100/125 KV 100, KM 100

    - Suzuki: GP 100/125, A 100, TS 100/125, TF 100/125, GS 125, DR 125 DS 80, GT 125, TC 100/125

    - Yamaha: DX 100, DT 100/125/175, RX 100/125, LS1, LS3, RD 125, RT 100, AS3, YL1, YB1

    Homologation requests can be submitted to the BRA committee for consideration.

    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 and only twin shock frames to be used. (i.e. 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 be 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: KH 100/125, G4, G7, KE100/125 KV 100, KM 100

    - 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 i.e. Valves shall remain original angles and position and shall remain standard sizes only (no larger valves to be fitted)
    4aii) Porting is permitted
    4aiii) Camshaft modifications are permitted. Note: Camshafts that interchange between homologated models may be used. i.e. CB may be used in XL, GS may be used in DR etc.

    4b) 2 stroke cylinder modifications: 2 stroke barrels/cylinders shall be restricted to an exhaust port width of 70% of the 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 re grooving) Maximum tyre sizes are restricted to a width of 100 section E.g. 100/80 x 17.

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

  8. Induction: Induction will be by carburetors only 28mm carburetors maximum for 2 stroke (that is 28mm at the narrowest point of the carburettor bore/throat). (Standard Carburettors only on Honda CB125T models) No fuel injection. No forced air induction.

  9. Fairings: No full fairings (i.e. No fairings below the top of crankcase)

    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 AND CAMSHAFT INSPECTIONS WILL BE CARRIED OUT DURING THE YEAR.




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