The XLC DO-A15 derailleur hanger is designed to be a replacement for your bike’s rear mech hanger when it bends or breaks. If your gears are slipping after your bike has had a tumble, it might be time to change your derailleur hanger. If this small piece of metal becomes misshapen, it can throw the whole rear derailleur out of line with the cassette, and thus, make shifting gears difficult. Keep your gears shifting smoothly and protect your frame from any damage in a crash with this hanger from XLC. Made from aluminium, it’s lightweight and has two holes to attach to the frame and the rear derailleur. It’s suitable for road, mountain, city, trekking and race bikes.