The QED disc plates feature a hollow design, which can significantly reduce the overall weight. In this weight reduction method, it will not affect the inherent stiffness of the disc, and you will see an excellent balance between stiffness and weight.

The adoption of CNC technology ensures that all components work together seamlessly. Featuring cutting-edge CNC technology, the manufacturing and assembly process is efficient and precise. Improve transmission performance and gear shifting.

After extensive research on the performance characteristics and wear of various tooth shapes of sprockets, the QED sprocket adopts a brand-new third-generation tooth shape. Transmission and gear shifting performance have been significantly improved. We have recalculated the parameters related to the root, groove, and shape of the teeth, ensuring accurate and smooth gear changes at different speeds under various conditions. The width between the teeth is increased, and the strength between the teeth is further improved, effectively extending the lifespan.

The 7075 aluminum alloy has excellent physical properties, offering resistance to friction, deformation resistance, high stiffness, and extremely light weight. The larger disc is made from 7075 aluminum alloy, making the QED set weigh only 138 grams while maintaining excellent performance.

The QED disc brake rotors adopt the widely popular 4-bolt 110BCD standard in the market, which reduces weight and offers greater compatibility. They can be perfectly adapted to 12-speed groupsets, aiming for top performance to meet the rigorous training and racing needs of cyclists.

• Teeth: 53-39
• Weight: 138g±2g (50-34)
• Compatibility with series: Shimano/Sram 11-12 speed
• Screws: 4-bolt
• BCD: 110mm