
Manufacturer reference: 4402 45 F
The standard PBR steel sprocket 4402 in pitch 420 is a part designed for road riders and urban or off-road pilots seeking reliable transmission. Forged from 18NCD5 steel alloy, it stands out with a sleek black finish and a construction designed to withstand the common stresses of the chain.
Thanks to a controlled manufacturing process, this sprocket offers good resistance to corrosion and abrasion. It easily integrates into a chain kit for restoration or regular upgrades, providing a durable solution for urban, roadster, and cross uses. Simple installation and adjustment: check chain slack and recommended torque during installation.
Example compatibilities: RIEJU MRT 50 SM (2025), GILERA RCR 50 (2020), DERBI SENDA 50 R DRD X-TREM (2019). Ideal for replacing a worn sprocket and regaining a sharp and smooth transmission behavior.