RFX composite double Pro Series Armalite steel alu - 520 51 teeth SprocketRef : RFX01581A / 1123245006

Pro Series Armalite Double Composite Sprocket Steel Aluminium - 520 51 Teeth by RFX

Two-ring sprocket designed for Cross/Enduro competition, featuring a centre made of 7075-T6 aluminium and a high-density steel outer band to minimise tooth wear. The lightweight design and mud release grooves enhance performance in muddy terrain. The Hex-Drive interface maximises power transfer between the rings and reduces stress on the rivets for improved race durability.

Design and Materials

• CNC machined 7075-T6 aluminium inner ring for reduced weight and lower wheel inertia.
• High carbon density special HCS steel outer ring for enhanced tooth wear resistance.
• CAD-designed profile to optimise mass without compromising strength.
• New mud release groove style to reduce abrasion in muddy conditions.

Practicality and Features

• Hex-Drive interface between the inner and outer rings for enhanced power transfer and reduced stress on the rivets, promoting assembly longevity.
• Detailed installation instructions including wheel removal, positioning, application of blue Loctite, and uniform tightening; this helps ensure a secure installation in accordance with the user manual.

Usage and Performance

• Designed for Cross and Enduro, tested at the highest level by racing teams to meet the demands of intensive use.
• Stiff design increasing torsional resistance, maintaining tooth alignment under high riding stresses.

Benefits

• OEM Reference FXRS61-51ALBK
• Anodised finish providing surface protection and a neat appearance.

Compatible Motorcycle Examples

• BETA RR 480 4T X-PRO (2027 - 480 cm3)
• BETA RX 450 4T (2027 - 450 cm3)
• BETA RR 430 4T X-PRO (2027 - 430 cm3)

Complete list of compatible motorcycles available in the dedicated section below