Manufacturer Ref: FXRS 40-48 ALRD
The RFX Pro Series Armalite 520 crown in red finish combines lightness and robustness for off-road and roadster machines. Designed and tested by international racing teams, it features a CNC machined 7075-T6 aluminum hub combined with a high-carbon steel sprocket ring, providing a balance between reduced inertia and durability of the teeth.
- Type: Composite double crown (aluminum center + steel ring)
- Material: CNC 7075-T6 Aluminum (center) / HCS Steel (outer ring)
- Pitch: 520
- Teeth: 48
- Technology: Hex-Drive interface between the two rings to transmit load without stressing the rivets
- Concrete advantages: CAD profile for weight reduction, mud release grooves to limit wear, rigid design for better torsional resistance
- Finish: Red anodization
Installation: follow manufacturer recommendations for tightening and the use of thread locker on bolts. Check chain alignment and the condition of seals before restarting.
Compatible with the Cross and Roadster universe — ideal for riders seeking a high-performance and reliable crown on muddy terrains as well as on fast tracks.
