



JT Sprockets steel sprocket, standard version 512 - 520, designed for roadsters and any replacement for 520 chain gearing. This 17-tooth sprocket is aimed at riders who value precise installation and reliable transmission for daily use: maintenance, repair, or gear ratio changes.
Easy to install as a replacement for your original sprocket, it fits common transmissions of roadsters. Ideal for those looking to achieve a clean alignment between sprocket and crown, reduce vibrations, and ensure reliable riding.
Examples of compatible models: