· .400 Pro Tree – 32 Car Qualified Field – Pro Ladder
· Slicks 10.5 Designation - MAX 12" Tread Width
· Any chassis is fine, must retain stock wheelbase within 2 inches
· Vehicle must retain original appearances and profiles for year and make of body.
· Mufflers are optional
· Class designation - OL followed by your number
General Rules: Reserved for 1987 and newer production date Motorcycles. This includes both the engine and frame. Frame must be OEM, frame modifications permitted as long as factory appearance is retained (I.E. cutting of seat rails, short necking...) Engine and frame swap permitted as long as same manufacture. (Suzuki/ Suzuki or Kawasaki/Kawasaki) No GS or KZ motors allowed. Bodywork must be OEM style specific to brand, not necessarily the model. Must have minimum one functional front brake caliper and rotor and the same for the rear brakes. Must have functional headlight and taillight. OEM preferred but not required. Aftermarket lightweight front-ends, swingarms and wheels permitted. Chain guard is required. NO wheelie bars! 2 1/2 inch ground clearance minimum. Tether required.
400 Pro Tree – 32 Car Qualified Field – Pro Ladder
Turbos
· 68" Wheelbase maximum
· Rear tire - DOT only
· Transmission - Hand clutch only (no sliders or auto trans)
· Single turbo only - no nitrous
· Intercoolers, aftercoolers, water injection permitted
· Fuel - Gasoline only
· Weight - 685 pound minimum bike and rider
· 2 Step launches not allowed
· Class designation - XPS followed by your number
Nitrous
· 75" Wheelbase maximum
· Rear tire - DOT or up to a 7" slick
· Transmission - Slider and auto trans are allowed
· Maximum of two stages of nitrous allowed
· Fuel injection or carburetor allowed
· Fuel - Gasoline only
· Weight - No minimum
· 2-Step launches allowed
· Class designation - XPS followed by your number
All Motor (N/A)
· Any wheelbase allowed
· Rear tire - DOT or up to a 7" slick
· Transmission - Slider and auto trans are allowed
· Fuel injection or carburetor allowed
· Fuel - Gasoline, alcohol, or nitromethane (20% nitromethane max blend)
· Weight - No minimum
· 2-Step launches allowed
· Class designation - XPS followed by your number