Renthal 509U-520-15P Ultralight Front Sprocket 520 Pitch 15 Tooth

The Renthal 509U-520-15P is a precision-engineered Ultralight front sprocket designed for high-performance street motorcycles. This 520 pitch, 15-tooth front sprocket delivers the perfect balance of strength, durability, and weight savings for demanding riding applications.

Key Features:

• CNC machined from case hardened and core refined 655M13 nickel-chrome-molybdenum alloy steel for exceptional strength and wear resistance
• Ultralight design with precisely machined material reduction for 10-15% weight savings over OEM sprockets
• Reduced rotating mass allows faster engine spin-up and improved throttle response
• Precision manufactured to extremely tight tolerances for optimal chain engagement and extended component life
• 520 chain pitch with 15 teeth for optimized gearing ratios
• Trusted by factory motocross and supercross racing teams worldwide

Renthal's advanced manufacturing process combines case hardening with core refinement to create a sprocket surface that resists wear while maintaining a tough, impact-resistant core. The Ultralight design strategically removes excess material without compromising structural integrity, reducing overall motorcycle weight and decreasing rotational inertia in the gearbox for sharper acceleration and deceleration.