GP1
This is an open class for expert riders ONLY on GP style chassis bikes only. If you have any questions please contact the OMRL for exceptions. Class applies for any motorcycle that does not fall within the guidelines of the above listed classes. 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 modifications to carburetor.
Engine displacement must not exceed
150cc liquid cooled 4-strokes
200cc for air cooled 4-stroke