ALL BALLS 79-5001 34mm CHAIN ROLLER BLACK HUSQVARNA CR 125 250 WR 125 250 300 MX You are purchasing: All Balls Husqvarna Chain Roller 34mm Black (79-5001) Suits: HUSQVARNA (Upper / Lower) CR 125 Years 1996-2013 CR 250 Years 1996-2004 WR 125 Years 1996-2013 WR 250 Years 1996-2013 WR 300 Years 1996-2013 Specifications: Designed as a direct replacement for the OEM design. 34mm and 38mm rollers feature an outer mechanical seal to protect the bearings from dirt and water and include mounting hardware.