Each cam chain is made from premium materials for reduced friction and increased service life and are expert engineered to exceed OEM specifications and tolerances. 'M' style chains offer maximum strength and durability. Features precision solid bushings and shot peened parts. Perfect complement to the Wiseco camshafts. Fits: Honda TRX250X 2009-2011, TRX250EX 2001-2008, TRX300 Rancher 2000-2006, TRX400 Rancher 2004-2007.