RFX Pro Series Armalite Double Compound (Steel/Aluminium) - 520 SprocketRef : RFX01147A / 1123228004

RFX Pro Series Armalite Aluminum Sprocket - 520 (FXRS31-48ALBK)

Designed with the track experience of championship teams, the RFX Armalite composite sprocket combines a CNC-machined 7075-T6 aluminum center with a high-density HCS steel outer ring. The result: a lightweight component that reduces inertia while maintaining a robust tooth profile for reliable transmission on demanding motocross terrains as well as on roadster rides.

• Type: double Armalite sprocket, pitch 520
• Number of teeth: 48
• Center: CNC-machined 7075-T6 aluminum
• Outer ring: HCS steel (high carbon density)
• Hex-Drive interface between inner and outer ring to minimize stress on the rivets
• Optimized CAD profile, mud evacuation grooves, and black anodized finish

Suitable for motocross and roadster machines, this sprocket is designed for riders seeking lightweight, rigidity, and transmission stability. Manufacturer reference FXRS31-48ALBK — check compatibility with your model (e.g., YZ 450F, Fantic XX 125, Honda FX 650) and adhere to the manufacturer's mounting recommendations and torque specifications.