RFX Pro Series Elite Aluminium - 428 SprocketRef : RFX00418A / 1123237001

RFX Pro Series Elite Aluminum Sprocket - 428 (Manufacturer Ref: FXRS 51-45 99BK)

Designed for motocross, this RFX Pro Series Elite sprocket is CNC machined from 7075 aluminum to combine lightweight and strength. Its black anodized finish and the laser-etched RFX logo provide a polished look on your swingarm while resisting the challenges of the terrain.

• Material: 7075 Aluminum, CNC machined.
• Color: Anodized black.
• Number of teeth: 45 teeth.
• Chain pitch: 428.
• Type: Standard, color code by model.
• Features: mud relief grooves, CAD profile to optimize mass, rigid design to limit torsion, and tight tolerances.

The relief grooves facilitate mud evacuation to extend the lifespan of the chain and sprocket on muddy trails. The studied profile allows for mass reduction without sacrificing strength, which is beneficial for acceleration and rev changes out of corners.

Compatibility: particularly suited for 85cc competition (e.g., KTM 85 SX STD WHEELS 17/14, HUSQVARNA TC 85 STD WHEELS 17/14, GAS GAS MC 85 19/16 - 2025 models). Check the number of teeth and the 428 pitch before installation.