
JT SPROCKETS Standard Steel Sprocket - 520 (Manufacturer's ref: JTR703.42)
Replace the worn sprocket with a robust and simply designed part for the final drive of your roadster. This JT SPROCKETS steel sprocket, with a chain pitch of 520 and equipped with 42 teeth (type 703), is aimed at riders looking for a reliable replacement part that meets original specifications.
Designed for standard mounting, this sprocket fits transmissions equipped with a 520 chain. Ideal for road use, it will serve as a replacement on several roadsters, including the following models: APRILIA TUONO 660 FACTORY (2025), APRILIA TUONO 660 (2025), and BMW G 650 X MOTO ABS (2007).
Easy to visually inspect during maintenance (tooth wear, shouldering), the JTR703.42 sprocket allows for the restoration of compliant transmission geometry. Always check the condition of the sprocket and chain before installation and adhere to the manufacturer's torque specifications.