PBR Standard Steel Sprocket 4402 - 420 (47 Teeth)
A robust and understated replacement part for 420 transmission, this PBR sprocket draws on expertise from competition. Ideal for riders seeking a reliable standard sprocket for urban, cross, or roadster use, it comes in a black finish and fits configurations equipped with a 420 pitch chain.
- Manufacturer reference: 4402 47 F
- Material: steel (high-quality 18NCD5 alloy)
- Color: black
- Number of teeth: 47
- Chain pitch: 420
- Type: standard
PBR emphasizes a strict manufacturing process and selected materials: the 18NCD5 alloy offers excellent resistance to corrosion and abrasion, while the finishes minimize friction between the sprocket and chain. This sprocket is suitable as an original replacement for many maintenance or transmission restoration projects.
Common compatibilities (examples): RIEJU MRT 50 SM (2025), GILERA RCR 50 (2020), DERBI SENDA 50 R DRD X‑TREM (2019). Before installation, check the chain pitch and bolt pattern to ensure proper fit. Recommended maintenance: regular tension checks and chain lubrication to maintain even wear.
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