Rear Hanger

关于

A rear hanger , also known as a derailleur hanger , is a small but vital bike component that connects the rear derailleur to the frame . It plays a key role in ensuring precise shifting and protecting the frame in case of impact. Usually made from aluminum or carbon-reinforced materials , the rear hanger is designed to bend or break under stress—sacrificing itself to prevent damage to the bike frame or derailleur during crashes or falls. A properly aligned derailleur hanger is essential for smooth, accurate gear changes . Many bike brands offer replaceable hangers to make repairs easy and extend frame life. For riders who tackle rough trails or high-speed descents , keeping a spare rear hanger on hand is a smart move.