Renthal 439-520-13GP Front Sprocket, Grooved, 13-Tooth for Honda (439--520-13GP)

Upgrade your Honda motorcycle with the RENThAL 439-520-13GP Front Sprocket, engineered for dependable performance in demanding riding conditions. This grooved, 13-tooth sprocket is CNC-machined from case-hardened and core-refined 655M13 nickel chromium steel, providing a strong, wear-resistant foundation for long-term drivetrain service. Its precision-manufactured construction helps support consistent chain engagement and reliable power transfer.
The machined self-cleaning mud grooves at each tooth are designed to reduce mud buildup during off-road and adverse-weather riding. By helping clear contaminants from the sprocket and chain interface, the grooves support smoother operation and help increase wear resistance. This design makes the RENThAL front sprocket a practical choice for riders who need durable drivetrain components for motocross, trail riding, and other demanding applications.
An ultralight design provides a 10–15% weight savings compared with conventional sprocket designs, helping reduce rotating mass without sacrificing the strength required for hard use. The RENThAL 439-520-13GP combines lightweight construction, specialized steel, and mud-shedding tooth grooves in a direct-fit front sprocket solution for compatible Honda applications. Verify motorcycle fitment, chain size, and final-drive specifications before installation.

Features:

• Brand: RENThAL

• Part Number: 439-520-13GP

• Application: Compatible with select Honda motorcycles

• Tooth Count: 13 teeth

• Design: Grooved front sprocket with self-cleaning mud channels

• Material: CNC-machined 655M13 nickel chromium steel

• Heat Treatment: Case-hardened and core-refined construction

• Weight Reduction: Ultralight design saves approximately 10–15% weight

• Performance: Helps improve wear resistance and maintain reliable chain engagement

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