RFX Pro Series Elite Aluminium - 428 SprocketRef : RFX00360A / 1123229010

The RFX Pro Series Elite 7075 aluminum sprocket is designed for motocross riders who want a reliable and lightweight transmission. CNC machined and anodized, it features an optimized CAD profile, mud evacuation grooves, and a laser-etched RFX logo — details that make maintenance easier and extend the lifespan of the chain and sprocket.

• Material: CNC machined 7075 aluminum
• Number of teeth: 51 teeth
• Chain pitch: 428
• Color: Anodized black (manufacturer reference FXRS 35-51 99BK)
• Type: Standard, color code by model

The rigid design limits twisting under load, and the tight tolerances contribute to more precise chain engagement, essential for technical sections and jumps. The evacuation grooves prevent mud buildup to maintain constant chain-sprocket contact, while the anodization protects the finish during muddy rides.

Specifically suited for the motocross environment, this sprocket is compatible with 85cc and other machines that accept the 428 pitch — for example, Yamaha YZ 85 and Suzuki RM 85 depending on setups. Manufacturer reference: FXRS 35-51 99BK.