Racer X has learned that Kyle Chisholm has signed with Cycle Trader.com Rock River Yamaha to contest the 2014 Monster Energy Supercross Championship. The announcement comes on the heels of a big crash that put Ben LaMay, the team's other 450SX rider, out of action for at least the California leg of supercross. Chisholm's deal is for the entire season, regardless of when LaMay is able to return to action.