## Rear Sprocket 520 41 Teeth JT Sprockets JTR857 The JT Sprockets JTR857 rear sprocket is a high-quality component 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. ### Precision and Performance The sprocket has 41 teeth, which, combined with a 520 chain, ensures smooth and efficient power transfer. 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 bolt circle diameter is 145mm, which facilitates installation and ensures stable mounting. The mounting bolt hole diameter is 10.5mm. The JTR857 sprocket is compatible with 520 chains, making it an ideal choice for a wide range of motorcycles and scooters. ### JT Sprockets Quality JT Sprockets is a renowned manufacturer of motorcycle parts, known for the high quality of its products. The JTR857 sprocket is another example of the attention to detail and precision that is characteristic of this brand. By choosing JT Sprockets, you are investing in reliability and safety.