ProX Racing Parts 31.1480 Replacement Cam Chain Fits: Honda TRX250 Recon 2002-2014; TRX250EX 2001-2008; TRX250X 2009-2013; TRX350 Rancher 2000-2006; TRX400 Rancher 2004-2007 Strong M-type chain with special heat treated pins plus an advanced pin and link connection for maximum performance and durability Made to OEM specifications and tolerances for quarantined quality and superior durability Manufactured in Japan by Borg Warner, one of the largest main suppliers to a variety of OEM companies worldwide Will work with ProX Racing Parts as well as OEM valve train components