RFX Pro Series Armalite Double Compound (Steel/Aluminium) - 420 SprocketRef : RFX00304A / 1123220001

Manufacturer Ref: FXRS 15-49 ALRD

The RFX Pro Series Armalite composite sprocket with 49 teeth (pitch 420) combines lightweight design and strength for motocross riding. Designed and tested by international racing teams, it features a CNC-machined 7075-T6 aluminum center and a high carbon content HCS steel outer ring to extend the longevity of the teeth without adding weight to the rear wheel.

The Armalite feature: a dual-ring design with Hex-Drive interface between the inner and outer parts. This solution maximizes the transmission between the two elements and eliminates concentrated stress on the rivets. The CAD profile optimizes the material to reduce weight, while mud relief grooves minimize wear in muddy conditions. Finished in red anodization for a racing look and better resistance to external aggressions.

Main Features:

• Number of teeth: 49
• Chain pitch: 420
• Center: CNC-machined 7075-T6 aluminum
• Outer ring: high carbon content HCS steel
• Hex-Drive interface between rings, mud grooves, red anodization

Ideal for compact motocross machines (e.g., Honda CRF 150 R and variants), this sprocket integrates easily. Follow the manufacturer's installation recommendations and torque specifications to ensure safety and longevity.