Rules Northern Sport Mod Sport Compact Hobby Stock Enduro Bombers Admission Passes 1-Day Race Passes for Thunder Mountain Speedway are available at $10 each at the gate on race day. Kids 13 and under are free. Admission Gate prices may vary for Special Events. Pit Fees Pit fees for Thunder Mountain Speedway vary by vehicle class. Members get a $5 discount on pit fees: Sport Compacts – $30/$25 Enduro – $30/$25 Hobby Stocks – $35/$30 SportMod – $45/$40 Pitman – $30/$25
