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Sprocket RFX Pro Series Elite Aluminium - 428

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RFX Pro Series Elite Aluminium - 428 SprocketRef : RFX00361A / 1123229011

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Description
Compatible motorbikes
Questions and answers

DescriptionRFX Pro Series Elite Aluminium - 428 Sprocket

Product details :

Features

RFX Pro Series Elite Aluminum Sprocket - 428 (manufacturer part number: FXRS 35-51 99BU): a sprocket designed for motocross, combining lightweight and durability. CNC machined from 7075 aluminum and anodized blue, it features an optimized profile to reduce unsprung mass while maintaining appropriate rigidity for the rear wheel's demands on muddy and aggressive terrain.

Material: CNC machined 7075 aluminum.
Number of teeth: 51 teeth (sprocket).
Chain pitch: 428.
Finish: blue anodization, laser-etched RFX logo.
Mud evacuation grooves designed to limit accumulation and help extend the lifespan of the chain and sprocket.
Lightweight CAD profile and tight tolerances for a precise fit; rigid design for better torsional resistance.
Color coding by model for an aesthetic and track-visible installation.

Designed for motocross practices, this RFX Pro Series Elite sprocket fits 428 transmissions and is particularly suitable for 85cc machines like the YAMAHA YZ 85 and SUZUKI RM 85. A reliable part for those looking to combine style, reduced weight, and performance in muddy conditions.

Technical information :

Reference

RFX00361A / 1123229011

No transmission chain

428

Number of teeth (crown)

Type of crown

Standard

Number of teeth

51 teeth

Material

Aluminum

Color

Blue

Compatible motorbikes

YAMAHA9 compatible models

YZ 80 - 1993/2001YZ 80 LW BIG WHEELS 19/16 - 1994/2001YZ 85 LW BIG WHEELS 19/16 (CB05) - 2002/2003YZ 85 LW BIG WHEELS 19/16 (CB08) - 2004/2004YZ 85 LW BIG WHEELS 19/16 (CB10) - 2005/2026YZ 85 (CB04) - 2001/2003YZ 85 - 2024/2026YZ 85 (CB07) - 2004/2004YZ 85 (CB09) - 2005/2012

SUZUKI2 compatible models

RM 85 STD WHEELS 17/14 - 2002/2023RM 85 BIG WHEELS 19/16 - 2002/2023