RFX Pro Series Armalite Double Compound (Steel/Aluminium) - 520 SprocketRef : RFX00417A / 1123236015

Manufacturer's ref: FXRS 50-52 ALRD

The RFX Pro Series Armalite 520 sprocket in red combines lightweight and robustness for demanding riders. Designed with a CNC 7075-T6 aluminum inner ring and a high carbon density steel (HCS) outer ring, it features a dual-ring design that reduces unsprung mass while protecting the tooth profile. The CAD profile, mud evacuation grooves, and anodized finish optimize wear and longevity without compromising torsional rigidity.

• Type: RFX Pro Series Armalite dual composite sprocket
• Pitch: 520
• Teeth: 52
• Material: 7075-T6 aluminum (center) + HCS (outer ring)
• Technology: Hex-Drive interface between inner and outer ring (reducing stress on rivets)
• Color: Anodized red

Designed for motocross, quads, and roadsters, this sprocket is suitable for track and off-road use and fits setups requiring a 52-tooth in 520. Installation should be done with the motorcycle on a stand, respecting torque specifications and cleaning the hub is recommended; the use of blue Loctite on the bolts is advised. To ensure safe transmission, strictly follow the manufacturer's manual when tightening and reassembling the chain.

Ideal for machines like the TRIUMPH TF 450-X, DUCATI DESMO 450 MX, or STARK FUTURE VARG EX, the FXRS 50-52 ALRD offers a good weight/strength compromise for those looking to enhance the rear end without adding weight to the motorcycle.