
Manufacturer reference: 857 40 C45
The PBR 857 sprocket is a simple and reliable transmission part designed for 520 mounts. Made from C45 steel, it features a sleek black finish that easily integrates into quads, motocross bikes, and roadsters looking for a standard replacement sprocket.
Part of PBR's equipment range, this sprocket is aimed at riders who want to replace a worn part or easily modify their gearing. Its 40-tooth design is suitable for common 520 transmission setups on many trail, enduro, and roadster models.
Compatibility (examples): YAMAHA TT 600 RE (DJ01) 2004, MZ 660 MASTIFF 2000, YAMAHA XT 600 E (DJ02) 2002. Please check the bolt pattern and alignment hole positioning on your hub before installation to ensure a hassle-free fit.