Stock Beginner - YSR.s -
Stock can race with F-50
F-50 Beginner - Stock Water-cooled 50cc - NSR50 -
Derbi50 - Aprilia50, etc.
Formula 50 can race with F-GP
F-GP Beginner - Includes all air-cooled engines up
to 70cc
Stock Amateur - YSR.s -
Stock can race with F-50
F-50 Amateur - Stock Water-cooled 50cc - NSR50 -
Derbi50 - Aprilia50, etc.
Formula 50 can race with F-GP
F-GP Amateur
Stock Expert - YSR.s -
Stock can race with F-50
F-50 Expert - Stock Water-cooled 50cc - NSR50 -
Derbi50 - Aprilia50, etc.
Formula 50 can race with F-GP
F-GP Expert
Vets Stk. -Div 1-Exp - Vets Stk. - Div 2-Bg/Am
Vets Mod -Div 1-Exp - Vets Mod.-Div 2-Bg/Am
F-Thunder-Div. 1-Exp - F-Thunder-Div 2-Bg/Am
80ccGP Amateur
80ccGP Expert
80cc Stock - Am - 85cc limit
80cc Stock - Exp. - 85cc limit
Formula Extreme