RFX Pro Series Armalite Double Compound (Steel/Aluminium) - 520 SprocketRef : RFX00415A / 1123236013

RFX — Armalite Pro Series Sprocket (manufacturer part number: FXRS 50-52 ALBU)

Designed for demanding riders, this Armalite composite sprocket combines a 7075-T6 CNC aluminum core with a high-density carbon HCS outer ring. The double ring mounting (double crown) offers an excellent weight/strength compromise: aluminum reduces inertia while steel protects the teeth from wear caused by the chain and transmitted torque.

The Hex-Drive connection between the inner ring and the outer ring minimizes stress on the rivets and ensures direct force transmission, improving torsional resistance without adding weight to the part. The CAD profile and new mud evacuation grooves limit dirt accumulation to extend the lifespan of the teeth. Anodized blue finish for durability and a racing look.

• Number of teeth: 52
• Chain pitch: 520
• Materials: Inner ring CNC 7075 Aluminum / Outer ring HCS
• Type: Standard, double ring Armalite with Hex-Drive interface
• Application: Quad, Cross, Roadster

Installation tips: lift the wheel, remove chain and wheel, position the sprocket on the hub, use blue Loctite on the bolts, and tighten to the torque specifications recommended by the manufacturer.