Manufacturer's ref: FXRS 57-40 99OR
The RFX Pro Series Elite sprocket made from 7075 aluminum is designed for motocross riders looking to lighten their drivetrain without sacrificing strength. CNC machined and anodized in orange, it combines aesthetics and durability: laser-etched RFX logo, mud relief grooves, and a CAD-designed profile for reduced weight. Designed for a 415 pitch and equipped with 40 teeth, this standard rear sprocket easily fits the relevant 50cc motocross bikes.
- Material: CNC machined 7075 aluminum
- Number of teeth: 40 — chain pitch: 415
- Finish: orange anodization, laser-etched logo
- Mud relief grooves to extend the lifespan of the chain and sprocket
- CAD profile for reduced weight and a rigid design offering better torsional resistance
- Close tolerances for a precise fit with the sprocket
Color-coded by brand, the RFX Pro Series is also available in standard silver. Ideal for muddy terrains and intensive motocross sessions, it is compatible with KTM 50 SX (2025), HUSQVARNA TC 50 (2025), and GAS GAS MC 50 (2025) models.
