Steel Output Sprocket - 520 13 Teeth by RFX

Steel output sprocket designed for off-road use. Its construction focuses on wear resistance and precise engagement for reliable performance on trails.

Design and Materials

• CNC machined with extremely tight tolerances to maintain tooth geometry and improve engagement consistency.
• High-hardness cemented alloy steel, heat-treated to resist wear and retain tooth shape over time.
• Lightening holes present on certain models to reduce the sprocket's mass on applicable versions.

Practicality and Features

• Pitch 520 and 13 teeth, suitable for transmissions equipped with a 520 chain for standard compliance.
• Tight machining tolerances facilitating fit during installation and minimizing play during operation.

Benefits

• OEM Reference FXFS66-1355ST
• Designed for Cross and Enduro practices, in line with off-road usage.

Examples of Compatible Motorcycles

• TRIUMPH TF 450-X (2026 - 450 cm3)
• TRIUMPH TF 450-RC (2026 - 450 cm3)
• TRIUMPH TF 450-E (2026 - 450 cm3)

Complete list of compatible motorcycles available in the dedicated section below