Jim Beaver and the Down & Dirty Radio Show Powered By Polaris RZR are breaking action sports records today with Nitro Circus! We’ve got Josh Sheehan, the first man to ever triple backflip a dirt bike on air, Jolene Van Vugt, the first woman to ever backflip a dirt bike on air, and Ami Houde is back with more KMC Wheels Supercross coverage. On the event side we’ve got General Tire Norra 1000 and BITD Silver State 300 coverage, WRX results, Endurocross, and Supercross dissection, as well as all of the latest news and results from the world of off-road and action motorsports. #GameOn