## Rear Sprocket 520 47 Teeth JT Sprockets JTR857 The JT Sprockets JTR857 rear sprocket is a high-quality component designed for motorcycles and scooters, guaranteeing optimal power transmission. Made of C49 - High Carbon Steel, it is characterized by exceptional strength and wear resistance, which translates into a long service life, even under demanding operating conditions. ### Precision and Performance The sprocket has 47 teeth, which, combined with a 520 chain, ensures smooth and efficient operation of the drive system. Precise manufacturing guarantees a perfect fit to the chain, minimizing energy loss and ensuring dynamic riding. ### Fit and Installation The central hole diameter is 125mm, and the mounting bolt hole diameter is 10.5mm. The bolt circle diameter is 145mm. These parameters facilitate the selection of appropriate bolts and precise sprocket installation. The JTR857 sprocket is the ideal solution for those looking for a reliable and durable drive system component. ### JT Sprockets Brand - Quality Guarantee JT Sprockets is a renowned sprocket manufacturer known for the high quality of its products. By choosing a JT Sprockets sprocket, you are investing in proven technology and reliability, which translates into safety and riding comfort.