CLASSES FOR 2022

THESE REGULATIONS/CLASSES ARE IN ADDITION TO, AND NOT INPLACE OF, THE ACU TECHINICAL REGULATIONS.

THE ORGANISERS RESERVE THE RIGHT TO IMPOUND ANY MACHINE, ITEM OF EQUIPMENT OR CLOTHING AT ANY TIME AND WITHOUT THE RIGHT OF PROTEST OR REFUND.

Sidecar 590cc-1300cc Open
Open to all three-wheeler outfits of any capacity and KTM890. SUBJECT TO NUMBER OF ENTRIES. MINIMUM 16 REQUIRED.

Classic ERA
Open to any 501-1300cc machines manufactured from 1988 to 2000. Or any machines 501-1300cc manufactured pre1987.

GP80-125cc and 126-450cc Single and Twin Cylinder
Includes: Moto 3 Honda NSF 4 Stroke. Kawasaki 400 & 300 4 stroke. Yamaha RS 400 Twin. KTM 390.

Pre-Electronic Injection
Up to 600cc and 601-1300cc machines. Generic and formula specifications.

Sounds of Music 2 Stroke Machines
247-750cc two stroke machines. Includes GP or road based machine/converted road spec to race spec. Tyres can be treaded or slick.

390cc-650cc Minitwin, 390cc-650cc Supertwin
Any four-stroke minitwin made for road use, or modified four-stroke supertwin, with water cooled engine up to 650cc, or an air cooled 600cc up to 820cc, 660cc Aprilia, 690cc Kramer and Yamaha R7.

Formula 400cc
Any Formula 400cc production based 250cc two-stroke and 400cc four-stroke. Generic regulations. No slick tyres permitted.

Mallory Trophy
Open Class up to 600cc. And 601cc to 1300cc. Rookies not eligible.

Open 401-600cc
Open to 401-600cc 4 cylinder machines. Includes 675cc, 765cc and 798cc triples, 890cc twin Kramer and 959 V twin Ducati. Kawasaki 636, pre-2007 are also eligible.

Novice/Rookies 175cc-1300cc
Riders must not have held an ACU Licence before 1st January 2020. Slick tyres allowed if licence permits. Exceptions to the above date by approval by the Secretary of the meeting. Riders who have passed their ACU CTC/BRA since 1st January 2020 AND who have upgraded to Clubman within this timeframe, will not be eligible.

Allcomers Trophy
597cc-1000cc machines. Generic regulations. Rookies eligible.

CB500
EMRA 500 specifications. No slick tyres permitted.

Open 500cc
Open to all machines up to 500cc. Includes 650cc twin and 700cc single.

PLEASE NOTE THAT SLICK, TREADED OR WET TYRES AND TYRE WARMERS CAN BE USED IN ALL CLASSES. (EXCLUDING CB500, WHERE NO SLICKS ARE PERMITTED).

NOVICE AND INTERMEDIATE NOVICE COMPETITORS ARE REQUIRED TO WEAR AN ORANGE VEST IN ALL RACES AND PRACTICE PERIODS.