Jim Beaver and the Down & Dirty Radio Show Powered By Polaris RZR are bringing you another packed episode as we help kick off the Nitro Circus North American Tour with Street Bike Tommy on air with Jim Beaver and Ami Houde! We’ll also have SCORE Trophy Truck Champ Steven Eugenio calling in, Terracross Charlotte coverage, SCORE Rigid Imperial Valley coverage, and news on Red Bull Straight Rhythm and all the latest in the world of off-road and action motorsports. #GameOn