BEARS Rules and Regulations

BEARS Supplementary regulations

Motorcycles must be of British, European, or American design with an engine and chassis of non-Asian design or manufacture. MACHINE ELIGIBILITY for any class is at the discretion of the race committee. Ensure your machine complies with class rules.

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ALCOHOL FUEL. BEARS 4 stroke machines may use alcohol fuel. Any machine using Alcohol fuel must display “Dangerous Goods” or other appropriate stickers which clearly indicate its use, on the machine in a prominent place and on storage containers.

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All machines must comply with all safety requirements as specified in the MNZ manual of motorsport.

Official BEARS Classes

• BEARS Formula One: Purpose built race bikes and technically advanced production sport bikes. 661cc - Open capacity, fuel, and tyres. No cross entry between F1 and Formula Sport.

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• BEARS Formula Sport: Pre 2006 production based sport bikes 550cc – Open capacity. Purpose built race bikes and post 2006 machines 550 – 660cc. Pump fuel, Open tyres. No cross entry between Formula Sport and F1.

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• BEARS Formula Two: Purpose built race bikes and production sport bikes: Four stroke, 350 - 805cc multi. Max. 2 valves per cylinder - Pump fuel, Open tyres. 350 - Open single - Open fuel, Open tyres. Two stroke, 0-350cc multi. 0 - 600cc single - Pump fuel, Open tyres.

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• BEARS SuperStock: Production based bikes. Original engine chassis & suspension layout. Modifications are permitted providing original concept and design are retained. E.g. a twin shock suspension may be altered to a box section swing arm but not changed to mono shock etc. Pump fuel only. Open Tyres Two classes run concurrently:

  • 0 - 750cc fuel injection allowed if fitted as std equipment. Four stroke multi Max. 2 valves per cylinder. Single cylinder machines may have 4 valves per cylinder.

  • 751 - Open cc fuel injection allowed if fitted as std equipment. Four stroke multi Max 2 valves per cylinder. Single and shaft drive machines may have 4 valves per cylinder but multi limited to 1000cc.

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• Heritage: Any tubular steel construction frame with non upside down forks, must have twin rear shock suspension, one mounted each side of rear swing arm. Shaft driven bikes with twin or single shock must have rear shock absorber mounted beside differential. Open tyres, open capacity engine, air cooled, open fuel, carburetted and non- belt driven valve gear.

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• Lightweight: Two classes run concurrently. Open fuel, open tyres. No GP bikes.

  • Lightweight Ltd - Four Stroke, 0 – 400cc singles and air-cooled multi’s -Two Stroke, 0 – 350cc air cooled singles, 0 – 250cc air cooled, Multi’s and water cooled singles, 0 - 125cc water cooled multi’s.

  • Lightweight: Four Stroke, 401 – 600cc singles & air cooled multi’s, - Two Stroke, 351 – 400cc air cooled singles, 251 – 300cc Water cooled singles, 251 – 400cc air cooled multi’s, 126 -200cc water cooled multi’s.

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• Moto-Euro: Any bike manufactured in mainland Europe. (i.e. no British bikes) European engine and frame or frame of non Asian design. 401cc – Open water cooled 4 valves per cylinder twins. 601cc – open capacity all other machines. Open fuel, Open tyres.

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• Best of British: Open to any motorcycle manufactured in Britain. British engine and frame or frame of non Asian design. Open fuel, open tyres. Four classes run concurrently:

  • 0-750cc

  • 751cc-Open

  • Hinckley Twins

  • Hinckley Triples and Fours.

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• BEARS Classics: (Non Championship Class) Non Asian design, pre 1972, no disc brakes, treaded tyres. Frame and suspension must resemble this era. Two classes run concurrently:

  • 0 - 500cc

  • 501cc - Open.

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• Milwaukee Iron: Open to any Harley Davidson, Buell or EBR. Frames must be of non- Asian design. Open Fuel, open tyres. Two classes run concurrently:

  • 2V (max 2 valves per cylinder)

  • 4V (max 4 valves per cylinder).

Other available classes during the BEARS Championship series:

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​Training Class - road motorbike any make. Maximum of six riders with an individual one-on-one trainer assigned to them. Passing is allowed on the outside of corners and straights only. Sessions will be 15 minutes each.

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Have A Go Class - road motorbike any make. Passing is allowed on the outside of corners and straights only. Riders will be released from pit lane in a staggered format to ensure a gap between groups. No race starts permitted. Sessions will be 15 minutes each. Announced for each event the engine capacity will be restricted for the day to one of the following: 

• 600cc or more.

• Less than 600cc.

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CAMS Classes:

• Pre 72 which shall consist of machines manufactured after January 1st 1963 and before October 30th 1972.

• Pre 82 which will consist of machines manufactured after the closing date of the Period 1972 class and before December 31st 1982.

• Pre 89 which will consist of machines manufactured after the closing date of the period 1982 class and before December 31st 1989.

• Pre 95 which will consist of machines manufactured after the closing date of the period 1989 class and before December 31st 1995.

1. These rules are intended to ensure a high standard of authenticity and presentation of the representative periods.

2. All machines must comply with the safety and technical requirements as detailed under chapters 8 & 10 of the MNZ manual.

3. Later versions of the same models released (but not updated) e.g. Honda 750 K1-K6 may be acceptable as eligible for Pre 72 when competing in a racing class.

4. Pre 72 cut-off date is to exclude the following motorcycles; Kawasaki Z1 900, Yamaha TZ and RD from this class.

5. Pre 82 specifically excludes the following: Honda VF750F interceptor, Yamaha RZ (all models) Suzuki GSX1135, GSXR all models GPZ 900 all models Yamaha FJ 1100, Ducati F1 all models Suzuki RG 250, 400, 500 Gamma road bikes.

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Race Call Up Procedure

• A call to riders to prepare will be made 5 minutes before the pit lane opens.

• A call to riders to assemble at the dummy grid will be made 2 minutes before pit lane opens.

• Pit lane will be open for 1 minute and will then be closed with a barrier across the lane.

• Once Pit Lane is closed, any late arrivals will be required to start the race from a Pit Lane start.  This will be at the discretion of the CoC, who's decision is final. The Rider will be held in Pit Lane and only released after the field has passed the pit exit road or a point deemed safe by the Clerk of the Course.  

Race Starts

• Races will be standing starts and controlled by the lights at the course. If the lights are not operational flag drop starts may be used. At all times on the circuit, Flag signals override or take precedence over lights.

Exiting the track

• At the conclusion of racing riders should slow and continue around the track to assemble under direction of the flag marshal at the slip road at Flag point 3 (Hairpin).

• Once released by the marshal riders shall proceed directly to the track exit at turn 11 (Sweeper).

• Bikes returning to the pits must not use the pit lane to enter garages.