Supermoto Race Classes

Mini Youth (15 and Younger):
Unlimited modifications
Up to 160cc four-stroke single
Up to 85cc two-stroke single
Must use a mini chassis

Mini Pro:
Unlimited modifications
Up to 160cc four-stroke single
Up to 85cc two-stroke single
Must use a mini chassis

SuperSport:
Up to 690cc liquid-cooled, four-stroke Single
17” wheels allowed
No 16.5” front wheels allowed
No tubeless type wheels allowed
No slipper type clutches allowed
Must use DOT tires only

Sport MX:
Open displacement two-stroke or four-stroke Single
Standard size wheels (must have 21-inch front wheel) and full (stock) suspension travel
Brake rotors, pads and lines may be upgraded, but stock brake calipers must be retained
DOT tires are required

250:
Unlimited modification
Up to 167cc liquid-cooled, two-stroke Single
Up to 200cc air-cooled, two-stroke Single
Up to 250cc liquid-cooled, four-stroke Single
Up to 400cc air-cooled, four-stroke Single

450B:
Unlimited modification
Up to 285cc liquid-cooled, two-stroke Single
Up to 400cc air-cooled, two-stroke Single
Up to 455cc liquid-cooled, four-stroke Single or Twin
Up to 550cc air-cooled, four-stroke Single

SuperBikers / Premier:
Unlimited modifications, Open displacement Single or Twin
No Heat races, two separate 15 lap main events ran opposite track directions

Vet (40+):
Unlimited modifications, Open displacement Single or Twin, Minimum age of 40 to participate

Quad SM:
Unlimited modifications, Open displacement