







JT DRIVE CHAIN 420 HDR Kit - 11/60-138
Replace your transmission with a simple and robust set: reinforced 420HDR chain, steel front sprocket, and standard steel rear sprocket (138 links). Designed for lightweight motorcycles, pit bikes, and mopeds, this kit restores the transmission for urban use and daily rides. The harmonious assembly of the three components limits jolts and facilitates regular maintenance (lubrication and tension).
The 420HDR chain offers a reinforced construction suitable for the demands of small engines; the steel sprocket/crown combination ensures mechanical stability and controlled progressive wear.
Common compatibilities: 50–125 cm³ motorcycles, mopeds, and models such as BETA RR 50 (Motard, Motard Track, Motard Sport). Ideal for those seeking a simple, robust, and easy-to-replace solution on the road or in the workshop.