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 7-9 59-65cc 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 Expert
250 Amateur
250 Novice
Open Expert
Open Amateur
Open Novice
Plus 25 Expert
Plus 25 Amateur
Plus 25 Novice
Plus 30 Expert
Plus 30 Amateur
Plus 30 Novice
Plus 40 Expert
Plus 40 Amateur
Plus 40 Novice
NON-ADVANCEMENT
All MSC Events
125 Two Stroke Only
Collegeboy 17-24
Plus 35
Plus 50
Plus 60
Schoolboy 12-16
Women 12+
VINTAGE
At all Diamondback MX and Double Points and select ACE MX @THE WICK 338, ECHO VALLEY, OCFMX, and Walden MX Events Only
2000’s Y2K – 2009 Bikes and older – ALL RACES ALL TRACKS
Vintatge 90’s – 1999 Bikes and older – All DBMX and Double Points events at all other tracks.
Vintage 80’s – 1989 Bikes and older – All DBMX and Double Points events at all other tracks.
Vintage 70’s – 1979 Bike and older – All DBMX and Double Points events at all other tracks.