JT Steel Rear Sprocket 42T for Street BMW F800 GS 2009-2012

Steel Rear Sprocket

O.E.M. Gearing: 17/42

Chain/Links: 525-116

Teeth:42

For 10mm bolt

Using the latest generation of computer design and control metal cutting equipment for maximum durability.

Made from the finest C49 high carbon steel or 7075 T6 aluminum.

Front sprockets are made from chromoly SCM420 steel alloy.

All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards.