Choosing a replacement derailleur hanger
If the derailleur hanger can't be bent back into shape it's time for a new one. Any derailleur hanger will work with any derailleur, but there are loads of designs out there that are particular to different frames.
The hanger that's suitable for most B'Twin Facet, Alur, Van Rysel Ultra and Triban road bikes, for example, is different from one designed for a B'Twin Riverside Hoprider hybrid bike.
The type of derailleur hanger you need for Rockrider mountain bikes differs between models. The listings on our website tells you which bike hanger is designed to fit.
If your bike is sold by Decathlon, find it on our website and scroll to the bottom of the page. In the 'Maintenance and repair' section, there's a 'Spare parts' button that'll take you to all the relevant replacement components, including the derailleur hanger you need.