RFX Pro Series Armalite Double Compound (Steel/Aluminium) - 520 SprocketRef : RFX00350A / 1123228003

Manufacturer reference: FXRS 31-50 ALBU — RFX Pro Series Armalite composite sprocket 520, 50 teeth (blue).

Designed for demanding riders on both track and road, this double RFX Pro Series composite sprocket combines lightweight construction with durability. Its CNC-machined inner hub made of 7075-T6 aluminum reduces unsprung mass for a more responsive handling, while the high-density carbon HCS outer sprocket prolongs tooth life. The Armalite assembly features a Hex-Drive interface between the two rings: a positive connection that limits stress on the rivets and ensures reliable torque transmission.

• Material: CNC 7075 aluminum inner ring / HCS (high carbon steel) outer ring
• Number of teeth: 50 — pitch 520
• Double ring design for reduced weight and strength
• Optimized CAD profile for lightweight without sacrificing rigidity
• Mud evacuation grooves to reduce wear in off-road conditions
• Blue anodized finish for lasting durability and a racing look

Ideal for Cross and Roadster environments. Installation should be performed with the motorcycle secured on a stand; clean the hub, apply suitable Loctite on the bolts, and tighten to the manufacturer's recommended torque. Check chain alignment and tension after installation.