
The JT Sprockets crown reference JTR809.53 is a transmission part designed for the replacement or adjustment of the gearing on 125cc motorcycles and roadsters. Machined from carbon steel C49, it features a sleek and robust black finish, suitable for both Cross and Roadster machines.
Designed to easily integrate into transmission systems equipped with a 428 chain, this crown is aimed at riders replacing a worn part or modifying their final drive ratio to adapt the motorcycle's behavior. Its standard design allows for simple installation without specific adjustments for most compatible models.
Examples of common installations:
Original part from JT Sprockets, ideal for maintenance or customization of the transmission. Always check the exact compatibility with your model and the condition of the chain before installation.