RENTHAL Twinring* Rear Sprocket - 2240-520 Series

Introducing the innovative Twinring* Rear Sprocket, designed for performance and durability in mind. Crafted with a high-strength Ultralight* 7075 T-6 aluminum inner ring, this sprocket offers exceptional strength while maintaining a lightweight profile. The outer ring is made from electro-less nickel coated steel, ensuring ultimate durability and longevity. This unique design employs minimal material to keep weight down without sacrificing strength.

The manufacturing process involves expanding the outer ring at 200°C before fitting it over the inner ring. This precision interference fit, combined with a wave pattern, guarantees a permanent bond that enhances the lifespan of the chainwheel. Flat socket head screws are incorporated to provide additional strength during side impacts, effectively eliminating contact with the chain guide for improved performance.

Engineered for efficiency, the Twinring* Rear Sprocket features self-cleaning mud grooves between each tooth. These grooves prevent dirt build-up, reducing wear and tear on the chainwheel while also minimizing weight. This innovative design ensures that the sprocket will outlast a standard all-aluminum sprocket by three times, while remaining significantly lighter than a traditional all-steel option.

Whether you're a competitive racer or a weekend enthusiast, the Twinring* Rear Sprocket is the perfect choice for enhancing your ride's performance. Experience the blend of cutting-edge technology and robust materials that make this sprocket a must-have for any serious rider.