Description

Experience the pinnacle of motorcycle transmission performance with the RENTHAL 397U-520 Ultralight rear sprocket. Engineered for riders who demand the absolute best, this component is a definitive upgrade for any high-performance motorcycle, delivering a tangible advantage in both competitive racing and spirited street riding. The Ultralight design is the result of meticulous computer-aided engineering, focused on a single goal: reducing rotational unsprung mass to the bare minimum without compromising an ounce of strength. This significant weight reduction leads to superior suspension performance, allowing your bike to react more quickly to surface imperfections, which enhances traction and rider feedback. You´ll feel the difference in sharper handling, faster acceleration, and more responsive braking.
Every RENTHAL Ultralight sprocket is a masterpiece of precision manufacturing. CNC machined to exceptionally tight tolerances, it ensures a perfect fit and flawless operation. This precision is critical for efficient power delivery, translating every bit of your engine´s output directly to the rear wheel with minimal drivetrain loss. The sprocket features a hard anodized finish, creating a tough, abrasion-resistant surface that stands up to the rigors of high-speed use while also providing excellent protection against corrosion. A standout feature is the inclusion of self-cleaning mud grooves, which are precision-machined into the base of each tooth. This intelligent design helps to clear mud and grit away from the critical contact points, drastically reducing wear and tear on both the sprocket and the chain, ensuring longer-lasting performance and reliability.
Aluminum Wheel Rear Chainwheel.
Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life.
Renthal´s combination of a high strength base material and exceptionally hardwearing surface result in significantly increased chainwheel life over other brands.
For Models with:
BST Carbon wheels 76×100 pitch circle diameter.
Marchesini wheels 76×100 pitch circle diameter.
OZ Racing wheels 76×100 pitch circle diameter.
Trusted by more champions and race teams around the globe than any other sprocket brand, Renthal´s commitment to quality and innovation is evident in every detail of the 397U-520 Ultralight. This specific model is designed for elite aftermarket wheel setups, ensuring seamless compatibility with some of the most respected names in performance wheels. By choosing the RENTHAL Ultralight rear sprocket, you are not just replacing a part; you are investing in a championship-proven technology that will elevate your riding experience and unlock the true potential of your machine. It is the ultimate choice for the serious rider focused on performance, durability, and a competitive edge Gold