(F3) Formula Three

2017

This class applies for any motorcycle that does not fall within the guidelines of the above listed classes.  Riders may bump up into this class with any of the above-mentioned racing class machines.  Motorcycles must not exceed the following guidelines:

  • Unlimited modification to frame
  • Unlimited modification to suspension.
  • Unlimited wheel size.
  • Unlimited modification to braking system.
  • Unlimited modifications to exhaust with sufficient silencer.
  • Unlimited modification to carburetor.
  • Engine displacement must not exceed
  • 125cc air cooled 4-stroke 2 valve
  • 75cc air cooled 2-stroke
  • 63cc liquid cooled 2-stroke
  • +2cc maintenance overbore allowed
  • No liquid cooled 4-strokes