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Renthal UltraLight Rear Chainwheels are CNC machined in Manchester, UK from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer.
With Renthal's combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see why Renthal’s light weight all aluminum rear sprockets can be found on the rear wheels of more factory race team machines than all other competing brands combined.
The Renthal Rear Ultralight Grooved 57T Sprocket is designed for riders seeking durability and lightweight performance. Crafted from high-quality materials, this sprocket features a grooved design that enhances chain engagement and reduces wear, ensuring smoother power transfer. Its ultralight construction minimizes unsprung weight, contributing to improved handling and acceleration on the road or trail. Suitable for a variety of motorcycle models, this sprocket offers reliable performance in demanding riding conditions.
The Renthal Part Number 189U-420-57GRSI ensures compatibility with specific motorcycle configurations. The silver finish not only provides a sleek aesthetic but also offers corrosion resistance for extended use. The sprocket’s precise engineering guarantees a secure fit and optimal chain alignment, reducing maintenance needs and increasing overall drivetrain efficiency. Whether upgrading your existing setup or building a new bike, this 57-tooth sprocket is a proven choice for riders prioritizing lightweight strength and durability.
Installation is straightforward, and the sprocket's design maintains excellent chain retention during aggressive riding. Its robust construction withstands the rigors of off-road adventures or high-performance street riding, making it a versatile component for motorcycle enthusiasts committed to quality and reliability.
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