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2021 Bike Classes

Bike ClassAge
(as of Jan 1st)
2 Stroke4 StrokeNotes
50cc (4-6 yrs)4-60-51cc0-51ccAll PW classes are stock
50cc (7-8 yrs)7-80-51cc0 -51cc 
50cc Oil/Auto (4-8 yrs)4-80-51cc0-51cc- Single-speed automatic, oil-injected.
50cc Open (4-8 yrs)4-80-51cc0-51cc- No oil injected
- Mini-E bikes allowed
65cc (7-11 yrs)7-1152-65cc52-109cc- Air cooled 4-strokes 
- Must have 14" front wheel and 12" rear wheel
65/85cc (9-13 yrs)9-1352-85cc75-149cc- Air cooled 4-strokes
- Max 17" front wheel and max 14" rear wheel
85cc (9-11 yrs)9-1179-85cc75-149cc- Air cooled 4-strokes
- Max 17" front wheel and max 14" rear wheel
85/150cc (12-15 yrs)12-1579-85cc75-149cc- Max 17" front wheel and max 14" rear wheel
Super Mini (12-16 yrs)12-1679-112cc75-149cc- Max 19" front wheel and max 16" rear wheel
Schoolboy*12-1686-125cc126-250cc 
Collegeboy*16-24122-Open cc122-Open ccAge 24 by riders first seasonal race - Rider may enter class at 24yrs and complete season championship after 25thbirthday
125cc 2-Stroke12+ Up122-125cc0 
250cc (A-B-C)*12+ Up122-250cc122-250cc 
Open (A-B-C)*12+ Up122-Open cc122-Open ccMust be 14 yrs old to ride 251cc-Opencc
25+ (A-B-C)25+ Up122-Open cc122-Open cc 
30+ (A-B-C)30+ Up122-Open cc122-Open cc 
40+ (A-B-C)40+ Up122-Open cc122-Open cc 
45+45+ Up122-Open cc122-Open cc 
50+50+ Up122-Open cc122-Open cc 
60+60+ Up122-Open cc122-Open cc 
Women's (85cc+)*12+ Up84-Open cc99-Open cc

 *The minimum age for amateur riders is 12. In all events, a rider must be 14 or older to ride motorcycles above a 250cc.In motocross events, a rider must be 14 or older to ride a 250cc 4-stroke/2-stroke motorcycle. In motocross events, a rider must be 16 or older to ride a 450cc or above motorcycle.

Example: A racer who is 13 years old on the day of the event is not permitted to compete on 250cc model motorcycle. A racer that is 15 years old on the day of the event is not permitted to compete on a 450cc model motorcycle.