Renthal 520-17P Front Chainwheel for BMW S1000R, S1000RR, and S1000XR – Ultralight Performance Part

Renthal front chain-wheels are simply the finest front chain-wheel on the market today. Our Front chain-wheels feature a specially developed nickel-chrome-molybdenum steel which is case hardened and core refined to give the ultimate combination of strength and hardness. Renthal took extra time to reduce and machine away surplus mass of the Ultralight chain wheels. Chain-wheel mass reduction offers a two-fold gain. The overall mass of the machine is slightly reduced and the rotating mass of the gearbox is reduced, allowing faster engine spin-up and shorter over-run. Renthal's ultralight chainwheel is used by more factory motocross and suprecross team than any other chainwheel.

• Renthal's in house CNC facilities accurately machine each individual front chainwheel to the tightest tolerance possible
• Each chainwheel is introduced to great heat that hardens the surface to ensure the longest service life possible
• The strength and hardness comes from the core refined 655M13 Nickel-Chrome-Molybdenum alloy steel
• The ultralight design reduces weight to maximize performance

The Renthal 520-17P front chainwheel is engineered for high-performance motocross and supercross applications, offering unmatched strength and lightweight design. Crafted from a specially developed nickel-chrome-molybdenum steel alloy, this chainwheel undergoes a precise case-hardening process that enhances surface durability while maintaining a refined core. This combination ensures a long service life and reliable performance under demanding riding conditions.

Renthal’s in-house CNC machining guarantees each chainwheel is manufactured to the tightest tolerances, ensuring perfect fit and smooth operation. The design focuses on reducing excess mass, which not only decreases the overall weight of the motorcycle but also minimizes the rotating mass of the transmission system. The result is faster engine spin-up, improved throttle response, and shorter over-run, translating to better acceleration and agility during races.

The ultralight construction is a key feature appreciated by professional riders and enthusiasts alike, as it maximizes performance without sacrificing durability. This chainwheel is compatible with BMW S1000R (2019+), S1000RR (2019-2023), and S1000XR (2020+), making it a versatile upgrade for riders seeking top-tier components. The part is designed to withstand the rigors of competitive riding, with a hardened surface that resists wear and tear, ensuring consistent performance over time.

Whether you're replacing a worn-out component or upgrading for optimized racing performance, the Renthal 520-17P front chainwheel provides a reliable, lightweight solution built with quality and precision at the forefront. It’s a preferred choice among factory teams and serious riders looking to enhance their motorcycle's drivetrain efficiency and overall handling.

Features:

• Constructed from nickel-chrome-molybdenum steel alloy for optimal strength and hardness

• Case-hardened surface for extended durability and wear resistance

• Precision CNC machined for tight tolerances and perfect fit

• Ultralight design reduces overall weight and rotating mass

• Compatible with BMW S1000R, S1000RR, and S1000XR models

• Designed to improve engine response and acceleration

• Engineered for high-performance motocross and supercross riding