Here is the class line up for the upcoming ATV racing season of WPSA.
2007 WPSA POWERSPORTS ATV TOUR CLASS STRUCTURE
QuadMX SuperQuad Pro 450 SuperQuad Pro Am A Class B Class C Class Women A Women B/C 16-24 Plus 25 Plus 35 Open Amateur
Youth Classes Production Lites 13-15 yrs 50 cc limited auto clutch CVT belt drive 4 to 6 years 50 cc production auto clutch6 to 8 years 51 to 70 cc production auto clutch 6 to 11 years 70cc shifter 6 to 11 years 71 to 90cc 2 stroke 75 to 125cc 4 stroke production 8 to 11years 71 to 90cc 2 stroke 75 to 125cc 4 stroke production 12 to 15 years 90cc production CVT belt drive 8 to 15 years 75-125cc 4 stroke production 8 to 15 years 90cc 2 stroke-125cc4 stroke modified 8 to 12years 105cc 2 stroke 150cc 4stroke 12 to 15 years SUPERMINI
