Collection: Derailleur Hangers

A derailleur hanger, also known as a gear hanger or mech hanger, is a small but essential component that connects the rear derailleur to the bike frame. It is designed to protect the frame by bending or breaking in the event of an impact, preventing more serious damage to the derailleur or the bike itself.

Derailleur hangers vary between bike brands and models, so it is important to find the exact match for your frame. The best way to identify the correct hanger is to check your bike’s manufacturer specifications or compare the shape of your existing hanger with the detailed images and descriptions on our website. If you are unsure, our team are happy to help you find the right fit.

A bent derailleur hanger can cause poor shifting, skipping gears, or even chain misalignment. In some cases, it can lead to the derailleur being pulled into the spokes, causing significant damage. Replacing a damaged hanger as soon as possible ensures smooth gear changes and prevents further issues.

Minor bends can sometimes be straightened using a derailleur hanger alignment tool, but repeated bending weakens the metal and increases the risk of failure. If the hanger is significantly bent or has been straightened multiple times, it is best to replace it to avoid potential breakage while riding.

To install a new derailleur hanger, first, remove the rear wheel and unscrew the damaged hanger from the frame. Clean the mounting area and align the new hanger in place, ensuring a secure fit before tightening the bolts. Reattach the derailleur, check alignment, and adjust the indexing if necessary for smooth shifting. If you are unsure, a professional mechanic can assist with installation.

Derailleur hangers are designed to be a sacrificial component that absorbs impact and prevents damage to the frame or derailleur. While it may seem inconvenient, replacing a broken hanger is far easier and cheaper than repairing or replacing a damaged bike frame.

It is always a good idea to carry a spare derailleur hanger, especially when riding in remote areas or on long trips. Since hangers are model-specific and not always easy to find at local bike shops, having a spare ensures that you can quickly replace a broken hanger and continue your ride without unnecessary delays.

We stock a wide range of derailleur hangers compatible with many popular bike brands, including Boardman, Trek, GT, Muddy Fox, and more. If you cannot find the exact hanger for your bike, feel free to contact our team for assistance in locating the correct part.