Beginner
- New riders only
- Engine displacements must be a minimum of 249cc & a maximum of 1149cc
- Any tires
Open Novice
- Over 13 years old (year of)
- Engine displacements must be a minimum of 249cc & a maximum of 1149cc
- Flat track spec, trials spec, or street spec tires only (reference section 4.5)
- Riders in this class are restricted from entering Intermediate or Expert classes
Open Intermediate
- Engine displacements must be a minimum of 249cc & a maximum of 1149cc
- Flat track spec tire only
- Wheel rim size must be 19”
- Riders in this class are restricted from entering Novice or Expert
- Over 14 years old (year of)
Open Expert
- Pros only, must apply for expert license
- Engine displacements must be a minimum of 249cc& a maximum of 1149cc
- Flat track spec tires only
- Wheel rim size must be 19”
- 15 years old and older (year of)
- Riders in this class are restricted from entering Novice or Intermediate
Production Frame Class/DTX (Novice, Intermediate, Expert) Classes
- Modifications are allowed but limited to the requirements of engine displacement, minimum 249cc.
- Restrictions are limited to the manufactured size of capacity ie. KTM 530, CRF450, YZF250 etc
- Stroker kits, or and any cc over-bore must not exceed more than 5% of OEM.
- The model of bike must be in current production, but not limited to year.
- The frame must remain stock to OEM specifications without modifications
- Flat track spec tire only
- DTX Novice, min age 13 years old
- DTX Intermediate, min age 14 years old
- DTX Expert min age 15 years old
- Riders are restricted to only entering their own ability category
- Wheel rim size must be a 19” wheel for Intermediate and Expert classes
Sportsman
- Any displacement
- Novice and Intermediate riders only
- Flat track spec tires only
- Riders are restricted in signing up for Pro/Am
Pro/Am
- Any displacement
- Pro and Intermediate riders only
- Flat track spec tires only
- Riders are restricted in signing up for Sportsman
50cc Youth
- Up to 50cc displacement
- Tolerance of 5% overbore
- Any tires
65cc Youth
- Up to 65cc displacement
- Tolerance of 5% overbore
- Any tires
85cc/150cc Youth
- Up to 85cc 2 stroke/ Up to 150cc 4 stroke displacement
- Tolerance of 5% overbore
- Any tires
Ladies
- Any displacement
- Any tires
Vintage Lites
- Motor model year 1984 or earlier
- Up to 250cc/stroke or up to 400cc/4-stroke
- Flat track spec, trials spec, or street spec tires only (section 4.5)
Vintage Open
- Motor model year 1984 or earlier
- Any displacement
- Must be single cylinder engine only
- Flat track spec, trials spec, or street spec tires only (section 4.5)
Vintage Twins
- Motor model year 1984 or earlier
- Any displacement
- Can be single cylinder or twin cylinder engine
- Flat track spec, trials spec, or street spec tires only (section 4.5)
Vintage Dino
- Designed for 500 or smaller in the pre 1980’s era
- Air cooled 2 strokes
- 250/350 Honda 4 strokes
- XT/TT 500 2 Valve Yamaha
- Triumph 500
- Motorcycles must have a rear brake
Pre 1970’s design with rigid rear section, brake optional
- Harley Aermacchi 250/350
- Ducati 250/350
- Honda 250/350 Twin
- Flat track spec, trials spec, or street spec tires only (section 4.5)
Vintage Mod
- Designed for 4 valve 500cc or larger motorcycles 1980 or newer
- liquid cooled 2 strokes
- 4 valve 500/600 Honda Engines
- 650 Yamaha Twin
- 650/750 Triumph Twin
- Rotax 500/600
- Motorcycles must have a rear brake
- flat track spec, trials spec, or street spec tires only (section 4.5)
Veteran 30+
- 30 years old and older only
- Engine displacements must be a minimum of 249cc & a maximum of 1149cc
- Flat track spec, trials spec, or street spec tires only (section 4.5)
Veteran 40+
- 40 years old and older only
- Engine displacements must be a minimum of 249cc & a maximum of 1149cc
- Flat track spec, trials spec, or street spec tires only (section 4.5)
Veteran 50+
- 50 years old and older only
- Engine displacements must be a minimum of 249cc & a maximum of 1149cc
- Flat track spec, trials spec, or street spec tires only (section 4.5)
Hooligan
- Over 750cc displacement
- Twin cylinder only
- Stock frame only
- Flat track spec or street spec tires only (section 4.5)
- Over 16 years old
Knobbies
- Engine displacements must be a minimum of 249cc & a maximum of 1149cc
- knobby spec tires only
Mini Bike/ Mad Dog
- 150cc air cooled or less
- over 13 years old
ATV Pro Open
- Engine must originate from a motorcycle or an ATV
- Stroke and 4 stroke engines permitted
- Engines cannot be from sled, cars, jet turbines, etc..
- Must have flat track style spec tire only
- Turbos permitted
- Must be 16 years of age to participate
ATV Pro/Am 4 Stroke Production
- Must be OEM Chassis
- Must be a 4 stroke production based ATV engine with matching frame
- Must have flat track style tires
- Must be a minimum age of 15 years old
ATV AM OPEN
- Must be OEM Chassis
- Must be a 4 stroke production based ATV engine with matching frame
- Knobbies permitted
- Must be a minimum age of 13 years old
ATV Youth
- Must be OEM Chassis
- Must be a maximum 251cc
- Knobbies permitted
- Ages 8 – 13
Youth Small Wheel
- Any 50cc to 70cc Race Bike
- Ages 4-10 years old
- Any tire permitted
Youth Big Wheel
- 65cc- 150cc
- Ages 6 to 12 years old
- Any tire permitted