The Central Roadracing Association brings its insane brand of Superbike racing to BIR's road course, while IWA snowmobiles are on Lake BIR for drag racing and oval racing on open water. Superbike racers challenge the tight 13 turns on BIR's road course, taking the corners on two wheels and a knee. It’s a thrill a minute and great racing action. On-site camping is available, including 164 full-service RV sites. Daily admission is $25. Kids 12 and under are FREE!