Features: Made from aluminum alloy, it has high strength and durability, allowing it to bear the pressures and impacts of daily cycling. With its direct mounted design, the road bike front derailleur hanger can be effortlessly installed without the need for adjustments. By stabilizing the chain in the gear shifting system, the road bike carbon frame dropout hook minimizes unwanted chain movement and the chances of it coming loose. The intelligently engineered design of the bike front derailleur hanger effectively reduces the risk of chain drop during cycling. By providing a secure and stable holding mechanism for the chain, it ensures a safe and more consistent cycling experience. Specifications: Materials: Aluminum alloy Styles: CG21 Black / CG21 Red / CG22 Black / CG22 Red Size: As shown in the picture Package Includes: 1 pc Bicycle Front Derailleur Hanger Note: Please allow 1-2 cm errors due to manual measurement. Make sure you do not mind before ordering. Due to differences between different monitors, the picture may not reflect the actual color.