Josh Grant raced motocross and Supercross with Metal Mulisha as a personal sponsor. The Riverside rider won the 2009 Anaheim Supercross opener for his first premier class victory and Joe Gibbs Racing's first win in the class. He took the lead during the main and held on after a track-marker cover got pulled into his rear wheel with two laps left.

In 2010 Grant won X Games Super X gold at the LA Coliseum. His MM connection included riding at Deegan's compound as well as wearing the brand at the races.