RFX Pro Series Elite Aluminium - 428 SprocketRef : RFX00358A / 1123229008

Manufacturer's ref: FXRS 35-50 99BK

RFX Pro Series Elite sprocket made from 7075 aluminum, CNC machined for precise finishing and lightweight. Designed for motocross use, this 428 pitch sprocket with 50 teeth features an optimized CAD profile to reduce mass without sacrificing the rigidity necessary for power transfer. The surface is anodized in black and the RFX logo is laser engraved for a durable finish.

• Material: 7075 aluminum, CNC machining
• Number of teeth: 50 (428 pitch)
• Finish: Black anodization, laser engraved logo
• Design: CAD profile for lightweight, tight tolerances for better chain/sprocket performance
• Terrain maintenance: Mud evacuation grooves to limit clogging and extend the lifespan of the chain and sprocket

Ideal for gearing adjustments focused on grip and acceleration on technical tracks, this standard sprocket offers a good compromise between strength and weight for amateur competition or intensive off-road sessions.

Examples of compatible models:

• YAMAHA YZ 85 LW BIG WHEELS 19/16 (2026)
• SUZUKI RM 85 STD WHEELS 17/14 (2023)
• YAMAHA YZ 85 (2026)