Chrome Rear Shock Absorbers: Yamaha XS500 XS 500 (1974 1978) Honda CLR125 This set of head stock This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a PC800 for the years and models shown above They have been manufactured to replace the original set of head stock bearings on a Yamaha YP125 for the years and models shown above This set of rear shocks have been manufactured to replace the original factory shocks on a Yamaha XS500 for the years and models shown above the bottom is 10mm (You may need to change these to the required sizes either by using your old ones or purchasing spare bush kits from us please see other listings)