2021 Bike Classes
| Bike Class | Age (as of Jan 1st) | 2 Stroke | 4 Stroke | Notes |
|---|---|---|---|---|
| 50cc (4-6 yrs) | 4-6 | 0-51cc | 0-51cc | All PW classes are stock |
| 50cc (7-8 yrs) | 7-8 | 0-51cc | 0 -51cc | |
| 50cc Oil/Auto (4-8 yrs) | 4-8 | 0-51cc | 0-51cc | - Single-speed automatic, oil-injected. |
| 50cc Open (4-8 yrs) | 4-8 | 0-51cc | 0-51cc | - No oil injected - Mini-E bikes allowed |
| 65cc (7-11 yrs) | 7-11 | 52-65cc | 52-109cc | - Air cooled 4-strokes - Must have 14" front wheel and 12" rear wheel |
| 65/85cc (9-13 yrs) | 9-13 | 52-85cc | 75-149cc | - Air cooled 4-strokes - Max 17" front wheel and max 14" rear wheel |
| 85cc (9-11 yrs) | 9-11 | 79-85cc | 75-149cc | - Air cooled 4-strokes - Max 17" front wheel and max 14" rear wheel |
| 85/150cc (12-15 yrs) | 12-15 | 79-85cc | 75-149cc | - Max 17" front wheel and max 14" rear wheel |
| Super Mini (12-16 yrs) | 12-16 | 79-112cc | 75-149cc | - Max 19" front wheel and max 16" rear wheel |
| Schoolboy* | 12-16 | 86-125cc | 126-250cc | |
| Collegeboy* | 16-24 | 122-Open cc | 122-Open cc | Age 24 by riders first seasonal race - Rider may enter class at 24yrs and complete season championship after 25thbirthday |
| 125cc 2-Stroke | 12+ Up | 122-125cc | 0 | |
| 250cc (A-B-C)* | 12+ Up | 122-250cc | 122-250cc | |
| Open (A-B-C)* | 12+ Up | 122-Open cc | 122-Open cc | Must be 14 yrs old to ride 251cc-Opencc |
| 25+ (A-B-C) | 25+ Up | 122-Open cc | 122-Open cc | |
| 30+ (A-B-C) | 30+ Up | 122-Open cc | 122-Open cc | |
| 40+ (A-B-C) | 40+ Up | 122-Open cc | 122-Open cc | |
| 45+ | 45+ Up | 122-Open cc | 122-Open cc | |
| 50+ | 50+ Up | 122-Open cc | 122-Open cc | |
| 60+ | 60+ Up | 122-Open cc | 122-Open cc | |
| Women's (85cc+)* | 12+ Up | 84-Open cc | 99-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.