RFX Pro Series Armalite Double Compound (Steel/Aluminium) - 520 SprocketRef : RFX00349A / 1123228002

Manufacturer Ref: FXRS 31-49 ALBU — RFX Pro Series Armalite composite sprocket 520, 49 teeth. Designed and tested by racing teams, this dual sprocket combines a CNC machined 7075-T6 aluminum core with a high-density carbon HCS outer ring to minimize weight while extending tooth life.

• Construction: anodized blue 7075-T6 aluminum center + HCS outer ring.
• Hex-Drive Interface: hexagonal coupling between inner and outer ring for direct transmission and reduced stress on the rivets.
• Profile: CAD optimized for weight reduction and enhanced rigidity against torsion.
• Maintenance: redesigned mud release grooves to limit wear in muddy conditions.
• Specifications: 49 teeth, pitch 520, anodized blue color, standard type.

Ideal for motocross and roadster practices, this sprocket is aimed at demanding riders who want a robust and lightweight component for their transmission: chain, sprocket, and hub find a solution designed to withstand torque and stress during corner exits or hard acceleration.

Common Compatibilities: suitable, among others, for models like YAMAHA YZ 450 F, FANTIC XX 125, and HONDA FX 650 Vigor (check precise compatibility according to year and motorcycle reference).

Delivered with mounting recommendations: clean the hub, position the sprocket, use blue Loctite on the bolts, and tighten according to manufacturer torque specifications. Follow the maintenance manual for the safety and longevity of the transmission.