
Manufacturer part number: FXRS51-4699SV ā RFX Pro Series Elite aluminum 428 sprocket, designed for motocross. CNC machined from 7075 aluminum, this sprocket combines lightweight and strength to withstand muddy conditions and repeated jumps.
The Pro Series features mud evacuation grooves to limit chain/sprocket clogging and extend the lifespan of the drivetrain. The RFX logo is laser-etched, and the anodized finish protects the part while maintaining a race look on your swingarm. The CAD-optimized profile reduces weight while maintaining a rigid design that increases torsional strength; tight tolerances contribute to a precise fit with the chain.
Exemplary compatibility for small displacement motocross bikes: KTM 85 SX, Husqvarna TC 85, GASGAS MC 85 (2025 models in 85 cc). Ideal for riders looking for a robust, lightweight sprocket that can handle the demands of the terrain.