





The standard steel PBR sprocket 717 - 520 (manufacturer's ref: 717 13 18NC) is a transmission sprocket designed for use on a 520 pitch chain. Made from the 18NCD5 steel alloy developed from PBR's racing experience, it aims to provide a robust replacement part that meets original standards.
This sprocket fits transmissions where a 717 - 13 tooth sprocket in 520 is required. Its finish and machining reduce friction against the chain, ensuring smooth operation of the gearing. Ideal as a replacement part for roadsters and vintage or restored machines, it is particularly suitable for certain Cagiva models listed for compatibility.
Before installation, check the condition of the chain, the sprocket, and the output shaft; proper installation and tightening according to manufacturer recommendations ensure optimal performance. For any specific compatibility questions, refer to the motorcycle documentation or consult a specialist.