## Rear Sprocket 520 38 Teeth JT Sprockets JTR1857 The JT Sprockets JTR1857 rear sprocket is a high-quality component for your motorcycle. Made of durable C49 steel (High Carbon Steel), it guarantees long life and reliability even in the toughest conditions. With 38 teeth and compatibility with a 520 chain, this sprocket offers optimal gear ratio and smooth operation. ### Precision and Durability The JT Sprockets brand is synonymous with quality in the world of motorcycle parts. The JTR1857 sprocket is proof of their commitment to delivering top-class products. The C49 steel from which it is made is characterized by high resistance to wear and tear and mechanical damage, which translates into a long service life. ### Key Parameters: * **Number of teeth:** 38 - influences the drive ratio, adjusting the motorcycle's performance to individual preferences. * **Chain compatibility:** 520 - ensures a perfect fit and smooth operation of the drive system. * **Center hole diameter:** 125mm - guarantees precise fit to the wheel hub. * **Bolt circle diameter:** 145mm - facilitates assembly and ensures stable mounting. * **Mounting bolt hole diameter:** 10.5mm - allows the use of standard mounting bolts. ### Choose JT Sprockets Quality By investing in the JT Sprockets JTR1857 rear sprocket, you are choosing reliability, precision, and durability. It is the ideal choice for motorcyclists who value quality and safety.