
PBR Steel C45 Standard Sprocket 859 - 520 (Manufacturer Ref: 859 37 C45)
PBR rear sprocket designed for 520 pitch transmissions. Made from C45 steel, this standard 37-tooth sprocket features a black finish that discreetly integrates on both a roadster and a retro machine. Designed to replace the original part, it allows you to maintain the existing transmission architecture without modifying the pinion or chain.
Part suitable for roadsters and machines equipped with a 520 transmission. Ideal for maintenance replacements and restorations where you want to keep the original ratio. Examples of compatible motorcycles (non-exhaustive):