
JT SPROCKETS standard steel sprocket 22 - 520 (manufacturer part number: JTR22.49): a simple and reliable transmission part designed to replace your original sprocket on drivetrains equipped with a 520 pitch chain.
This sprocket fits the standard transmissions of roadsters and small displacement motorcycles listed (e.g., APRILIA RX 125, 125 SX, MX 125). Its C49 carbon steel design provides mechanical strength suitable for chain loads and engine torque, ensuring effective replacement during wear or when changing gear ratios.
Practical points: check the number of teeth and chain pitch before installation, verify chain/sprocket alignment, and adhere to the torque specifications recommended by the manufacturer. Regular checks of tension and lubrication extend the lifespan of the chain/sprocket assembly.