
Replace your rear sprocket with the reference JTR245/2.39 by JT Sprockets. Designed for 520 setups, this standard steel sprocket is aimed at Cross and Roadster riders looking for a simple and efficient transmission part for replacement or gearing modification.
The standard tooth profile and design are compatible with transmission systems equipped for 520 chains. This sprocket fits most compatible hubs and allows you to adjust the gearing according to your riding needs—whether to favor acceleration or top speed by adapting the front and rear sprockets.
Examples of compatible models (to be verified according to year and configuration):
Check the number of teeth and chain pitch before installation and have the alignment checked by a professional if necessary.