Championship Classes 2012
1a Formula 125 for up to 125cc Production based machines, 250cc Single Cylinder four stroke production machines and 80cc racing machines.
1b. 125cc racing machines for 101 to 125cc GP machines and 250cc Single Cylinder four stroke machines (GP3)
1c 125cc racing machines for 101 to 125cc GP machines PRE 95.
2. Formula Darley for up to 400cc 4 stroke 4 cylinder, 6000cc Four Stroke Single Cylinder, 650cc 4 stroke 2 cylinder and 250cc 2 stroke production based machines.
3. Formula 600 for 351 to 600cc 4 stroke 4 cylinder and 675cc 4 stroke 3 cylinder production based machines. (ACU Formula 600 regulations apply)
4. Lightweight solos for over 120cc and not over 250cc two stroke and over 200cc and not over 400cc 4 stroke machines without restrictions. (No Formula 125)
5. Open solos 201 - 750cc 2 stroke and 600 - 1300cc 4 stroke machines (No Formula 600 machines but Open 600cc and Formula Libra 600 cc machines are eligible)
6a. Sound of Thunder 451 to 1300cc 4 stroke machines with 1, 2 or three cylinders
6b. Mini Sound of Thunder over 300cc and not over 650cc 4 stroke machines with 1, 2 or three cylinders
7a Any solo machine up to 500cc built or manufactured before 31st December 1998.
7b Any solo machine over 501cc up to 1300cc built or manufactured before 31st December 1998.
8 Pre Injection & Steel Framed 600's
9. Peak Cup any solo machine up to 750cc two stroke or 1300cc four stroke.
10a Open sidecars for any sidecar to 1300cc four stroke and 750cc two stroke.
10b. Formula II Sidecars - complying with ACU Formula II specifications.

There will be a time permitting handicap race for 2012 Newcomers to Racing at all meetings except the Stars at Darley meeting.