Description of Class terms:

Stock ATV – Must be factory installed motor and frame combination, No performance pipes, neither aftermarket or factory installed, Must have Stock carb & full stock exhaust system including Spark Arrester, Must have non-vented air box with lid installed, Aftermarket air filters allowed, Aftermarket chain, sprockets and gearing allowed, Must have Stock Cylinder with Stock Bore and Stroke, No lowering, Stock length swing arm, No internal Motor Mods, Stock Shocks, Must have working head and taillight, Tires must be within 2” of stock diameter(except for 4x4 classes), Non-performance orientated dress up items allowed, Pump Gas only, No Pro Wedge, 4-Snow or Flat track Tires allowed.

Trail Mod. ATV – Must be factory installed motor and frame combination, Must have Stock Cylinder with Stock Bore and Stroke, Stock length swing arm, No Lowering, Must be within 1” of stock ride height, Tires must be within 2” of stock diameter (except for 4x4 classes), internal motor Mods allowed, Internal frame exhaust only (No Drag Pipes), Aftermarket exhaust allowed, No struts allowed (must have working suspension), Aftermarket chain, sprockets and gearing allowed, No wheelie bars, No Nitrous, Alcohol or Alternative Fuels, Pump Gas only, No more then .20 over bore allowed, Must have working head and taillight, No Flat track type tires allowed  

Mod. ATV – Motor & Frame must have originated from either a ATV or Off-Road Motorcycle, Aftermarket factory dimension style frames allowed (no drag only style frames allowed), After market Cylinders allowed, Must stay within listed Class cc size, No wheelie bars, Extended swing arms allowed, Lowering allowed, Struts allowed, No Nitrous, Alcohol or Alternative Fuels, Gas only, Drag Pipes Allowed, Must be at least 18 years old to enter

Limited Open ATV – Wheelie bars allowed, Extended swing arms allowed, Lowering allowed, No Nitrous, Alcohol or Alternative Fuels, Gas only, must be under 700cc, Aftermarket and custom frames allowed, Must be at least 18 years old to enter

Open ATV – Wheelie bars allowed, Extended Swing arms allowed, Lowering allowed, Nitrous and Alcohol or Alternative Fuels allowed, Aftermarket and custom frames allowed, Must be at least 18 years old to enter

Off-Road Challenge Classes:

• ATV
• Class 1: Pee Wee (Age 6-11, 100cc Max)
• Class 2: Junior Sport(Age 12-15)
• Class 3: Utility 0-400cc
• Class 4: Utility 401cc-Open (Age 16 and over)
• Class 5: Sport 0-249cc 2-Stroke, 0-350cc 4-Stroke
  (Performance 4x4s must run here in 2x4)
• Class 6: Sport 250cc-Open 2-Stroke, 351cc-Open 4-Stroke
  (Performance 4x4s must run here in 2x4)
• Class 7: Women's Sport
• Class 8: Women's Utility
• Motorcycle
• Class A: Pee Wee (Age 5-10, 100cc Max)
• Class B: Junior (Age 11-15, 200cc Max)
• Class C: Sport Motorcycle

Advanced Off-Road Challenge Classes: