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Sprocket RFX Pro Series Elite Aluminium - 520

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RFX Pro Series Elite Aluminium - 520 SprocketRef : RFX00344A / 1123226002

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Description
Compatible motorbikes
Questions and answers

DescriptionRFX Pro Series Elite Aluminium - 520 Sprocket

Product details :

Features

Manufacturer Ref: FXRS 30-49 99BU

The RFX Pro Series Elite aluminum 7075 sprocket is designed for motocross riders looking to lighten their drivetrain without compromising reliability. CNC machined and anodized in blue, it features 49 teeth with a 520 pitch, and an optimized CAD profile to reduce mass while maintaining precise geometry.

Material: aluminum 7075, CNC machining.
Teeth: 49 teeth — 520 pitch (compatible with 520 chains).
Finish: blue anodization and laser-etched RFX logo.
Design: mud evacuation grooves to limit accumulation and facilitate maintenance in muddy terrain.
Precision: CAD profile and tight tolerances for consistent chain performance.
Stiffness: reinforced design for better resistance to torsional forces in enduro/motocross use.

Targeted for motocross/cross, this standard sprocket fits the listed models and compatible 520 machines. Ideal for those seeking a lightweight, well-crafted, and visually durable part — especially suited for YAMAHA YZ 400 F (1998), YZ 250 (1998), and YZ 125 (1998), among others.

Technical information :

Reference

RFX00344A / 1123226002

No transmission chain

520

Number of teeth (crown)

Type of crown

Standard

Number of teeth

49 teeth

Material

Aluminum