150pc Specbolt Bolt Kit Fits: Yamaha TTR Bolt Kit for Maintenance Restoration OE Type Spec Fasteners TTR50 TTR80 TTR90 TTR110 TTR125 TTR225 TTR250 TTR600 50 80 90 110 125 225 250 600 XT PW. Used for maintenance repair and or restoration of all TTRs using OE type fasteners.