





Replace your transmission with a complete, simple, and robust kit from JT. This kit includes a 420 (HDR) steel chain, an 11-tooth front sprocket, and a 62-tooth rear sprocket made of standard steel — all designed for urban use and daily road rides. Ideal for those looking for a reliable, easy-to-install, and maintain solution.
This kit provides the essential components for the transmission: matched sprocket, crown, and chain for a precise fit. The steel components offer good abrasion resistance and are suitable for everyday use and light off-road outings. To preserve the chain, maintain the manufacturer's tension and regular lubrication — key elements for longevity and smooth transmission.
Compatibility (examples)Manufacturer reference: Not provided