85cc 10-15yr Class

• 66-85cc 2-stroke/75-150cc 4-stroke

• 1 hr race 

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65cc 7-12yr Class

• 52-65cc 2-stroke/52-110cc 4-stroke 

• 1 hr race

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1. The following may be changed: exhaust, twist throttle, and handlebars.

No other modifications allowed: including tires and wheels, carburetors, electronics,

suspension and engine modifications