Yamaha XS650 31T OVERDRIVE Rear Sprocket Fits All Years (a must for highway speeds) Engines / Clutch & Gaskets Metric Parts 2mm thickness for longevity and

2mm thickness for longevity and resistance to pinch flats during installation and operation

whether it came with factory mid controls or factory forward controls

this battery will not power an electric starter

Chamfered on the threaded end inside and out for easy welding and easy insertion of corresponding fastener (not included)

hardtail and using an electric-start drivetrain

Yamaha XS650 31T OVERDRIVE Rear Sprocket Fits All Years (a must for highway speeds) Engines / Clutch & Gaskets Metric Parts 2mm thickness for longevity andYamaha XS650 31T OVERDRIVE Rear Sprocket Fits All Years (a must for highway speeds) Everyone knows that Yamaha XS650 motors like to vibrate. One way to calm the vibrations is to swap out your rear sprocket to a 31 tooth to lower your RPMS. This is a MUST if you plan on traveling at highway speeds.