Front Countershaft Sprocket


Front countershaft sprockets.  Choose from 15 tooth to 19 tooth. Harden steel for long life.  For stock 525 chain size.


The easiest way to change the gearing on your modern Triumph Bonneville.  Simple 10 minute bolt-on part.  No need to cut the chain.  Use a smaller sprocket for faster acceleration or a larger sprocket to drop RPM’s at highway speeds.  Early 2001-2003 790cc models came with a 17 tooth sprocket.  Later 865cc models have a 18 tooth.