VIDEO | RJ Anderson Tears up the Mammoth Motocross Track in his RZR Turbo R
All-New Polaris RZR Turbo R Rips! Earlier this month, RJ took on the iconic Mammoth Mountain Motocross track in his new RZR Turbo R and we have the epic full-length video to prove it! The legendary Mammoth Motocross is the oldest continuous running motocross race in the USA starting in 1968. But due to the weather, fire hazard and…