JT Rear Sprocket 855.45 - Yamaha: 04-14 XT660 R (X); 04-14 XT660 R (X) ; 08-12 XTZ660 Z Tenere, X Super Motard 909686 HD applications are recommended for

HD applications are recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time

to the cam cover housing (nose cone)

hole to hole on mount bracket 15"

10 stobe patterns selectable through the dial on the module

Right hand threaded

JT Rear Sprocket 855.45 - Yamaha: 04-14 XT660 R (X); 04-14 XT660 R (X) ; 08-12 XTZ660 Z Tenere, X Super Motard 909686 HD applications are recommended forJT Steel rear sprockets are manufactured using Japanese C49 high carbon steel. Designed to minimise weight and maximise strength. Accurately machined to achieve balance and a perfect fit and chain alignment