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Sprocket RFX Pro Series Elite Aluminium - 428

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RFX Pro Series Elite Aluminium - 428 SprocketRef : RFX00434A / 1123237019

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Description
Compatible motorbikes
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DescriptionRFX Pro Series Elite Aluminium - 428 Sprocket

Product details :

Features

RFX Pro Series Elite Aluminum Sprocket - 428 (Manufacturer Part No: FXRS 51-49 99OR): a sprocket dedicated to motocross, designed to withstand muddy conditions and the demands of the terrain. CNC machined from 7075 aluminum, it features an orange anodized finish and the RFX logo laser-etched for a racing look on your bike.

This 49-tooth sprocket with a 428 pitch combines lightness and robustness: its CAD profile has been optimized to reduce mass without sacrificing stiffness, and mud evacuation grooves limit dirt accumulation to preserve the lifespan of the chain and sprocket.

Material: CNC machined 7075 aluminum
Number of teeth: 49
Chain pitch: 428
Finish: Orange anodization, laser-etched RFX logo
Design: CAD profile, mud evacuation grooves, tight tolerances
Type: Standard, suitable for motocross practices

Compatible with many 85cc motocross models — including KTM 85 SX STD WHEELS 17/14 (2025), HUSQVARNA TC 85 STD WHEELS 17/14 (2025), and GAS GAS MC 85 19/16 (2025). Ideal for those looking for a lightweight, durable sprocket with a racing look for training and competition.

Technical information :

Reference

RFX00434A / 1123237019

No transmission chain

428

Number of teeth (crown)

Type of crown

Standard

Number of teeth

49 teeth

Material

Aluminum