Renthal 509U-520-17P Ultralight Front Sprocket 520 Pitch 17 Tooth BMW

The Renthal 509U-520-17P Ultralight Front Sprocket delivers premium performance and durability for BMW S1000 series motorcycles. Engineered with Renthal's signature Ultralight design, this front chainwheel combines maximum strength with minimum weight for enhanced performance on the street or track.

Premium Construction:

• CNC machined from case-hardened and core-refined 655M13 nickel-chrome-molybdenum steel
• Specially designed alloy provides ultimate combination of strength and hardness
• Precision machined to extremely tight tolerances for perfect fitment
• Ultralight design reduces surplus mass through strategic material removal
• 10-15% lighter than OEM front sprockets

Performance Benefits:

• Reduced rotating mass allows faster engine spin-up and shorter over-run
• Decreased gearbox rotational mass improves throttle response
• Lighter overall machine weight enhances handling characteristics
• 520 pitch configuration for weight-saving drivetrain conversions
• 17-tooth configuration for optimized gearing options

Specifications:

• Chain Pitch: 520
• Teeth Count: 17
• Material: 655M13 nickel-chrome-molybdenum steel
• Finish: Case hardened and core refined

Trusted by more factory motocross and supercross teams than any other chainwheel manufacturer, Renthal front sprockets represent the finest quality available in the powersports market. Each sprocket undergoes rigorous quality control to ensure consistent performance under the most demanding racing conditions.