
PBR Standard Steel Sprocket 4402 - 420 (Manufacturer Ref: 4402 46 F)
Designed for 420 transmissions, this PBR 46-tooth sprocket is aimed at urban riders as well as cross and roadster enthusiasts. Made from 18NCD5 steel alloy, it features a black finish and machining that meets PBR standards derived from competitive experience. Ideal for replacing an original sprocket, it adheres to the dimensions and pitch of 420 for easy installation on compatible chain kits.
Particularly suitable for 50 cc models such as the RIEJU MRT 50 SM (2025), GILERA RCR 50 (2020), and DERBI SENDA 50 R DRD X‑TREM (2019). For maintenance, check the condition of the sprocket, chain, and rings before installation to ensure even wear and optimal longevity.