- Advanced Kart Class utilizing 250cc or 450cc motorcycle motors
- Drivers Ages 10-15
- 48 Horsepower
- 13″ Front Wheel Travel Limit
- 19″ Rear Wheel Travel Limit
- 73″ Maximum Wheelbase
- 58″ Maximum Track Width
- 815 lbs. Minimum Weight, including driver
- Modified Kart Numbers 500-599