



The PBR standard steel sprocket 263 - 428 is a drive component designed for demanding riders, whether they ride in the city, on the track, or off-road. Made from high-quality 18NCD5 steel alloy, it combines durability and longevity for reliable power transmission to the rear wheel.
PBR manufacturing relies on strict controls to ensure precise tooth profiles and smooth engagement with the sprocket and chain. Ideal for replacing a worn sprocket or upgrading the transmission of a roadster, urban motorcycle, or cross model, it is particularly suited for the listed 125 cc applications as examples of compatibility.
Compatibility (examples): YAMAHA R125 (2025), BETA RR 125 4T ENDURO LC (2021), RIEJU TANGO 125I SCRAMBLER (2020).
Manufacturer's ref: 263 17 18NC