
RFX Pro Series Elite Aluminum Sprocket - 420 (FXRS 15-54 99BK)
Designed for off-road use, the RFX Pro Series Elite sprocket is CNC machined from 7075 aluminum for an ideal balance between lightweight and mechanical strength. Its CAD profile and tight tolerances optimize engagement with a 420 chain while minimizing wear points. The mud evacuation grooves facilitate cleaning and reduce dirt accumulation between the sprocket and the chain.
This part is designed for enduro/cross and is compatible with HONDA CRF 150 R (2020-2026) and Big Wheels/Std Wheels variants depending on the installation. Manufacturer reference: FXRS 15-54 99BK. Installation complies with the recommended 420 pitch specifications.