In defending champion Ryan Villopoto’s absence, Tyla Rattray will compete along side Jake Weimer in the 450cc class aboard a Monster Energy Kawasaki KX™450F.
Stewart will compete in both AMA Pro Motocross and Supercross aboard the Yoshimura Suzuki RM-Z450 beginning with the first round of the 2012 AMA Pro Motocross Championship in Sacramento, CA on May 19th, 2012.
Check out the first pictures of James Stewart aboard his new Yoshimura Suzuki.