2021 Season Race Classes
The classes listed below are also listed in the AMA Rulebook. Please refer to the AMA Rulebook for detailed information regarding eligibilty for your motorcycle and your rider.
YOUTH
All MSC Events
- Limited PeeWee 4-6 0-50cc Two Stroke
- Limited PeeWee 7-8 0-50cc Two Stroke
- Limited PeeWee 4-8 Oil Inj 0-50cc Two Stroke
- Limited PeeWee 4-8 Open 0-50cc Two Stroke
- 65 7-11 59-65cc Two Stroke
- Junior Mini 9-11 65/85cc Two Stroke
- Mid Mini 9-13 85cc Two Stroke
- Senior Mini 12-15 85cc Two Stroke /150cc Four Stroke *
- Supermini 12-16 79-112cc Two Stroke /150cc Four Stroke **
* 14″ rear and 17″ front wheel.
** 17″ rear and 19″ front wheel.
ADVANCEMENT
All MSC Events
- 250 A, B, C
- Open A,B,C
- Plus 25 A,B,C
- Plus 30 A,B,C
- Plus 40 A,B,C
NON-ADVANCEMENT
All MSC Events
- 125 Two Stroke Only
- Collegeboy 17-24
- Plus 35
- Plus 50
- Schoolboy 12-16
- Women 12+
VINTAGE
At all Double Points and select ACE MX @THE WICK 338, DBMX , ECHO VALLEY, HOLIDAY MNT, &
OCFMX Events Only
- 70’s Evolution
- 80’s Modern
- 90’s Advanced
- 2000’s Y2K
