Description
Derailleur hanger replacements are specific to each bike – please check compatibility with our list below, but confirm by comparing your current hanger with the photo, since this is the most reliable way to ensure you are ordering the correct items. Please send a photo to us if you are unsure. All our hangers come with the correct bolts or fittings as appropriate. Why not get another for a spare so you can fix by the roadside next time?
Fitting Instructions
See our fitting guide: https://youtu.be/7PVZ50Gk1zE
Why do they break?
Derailleur hangers are sacrificial parts designed to break or deform instead of the bike frame. This kind of damage usually happens when a chain gets caught or the derailleur crashes into the spokes. It’s cheaper to replace a hanger than an entire frame, thus reducing / eliminating damage to the frame and drive train components.
List of compatible TREK bikes (part number W524188)
Boone (standard mount derailleur) – 2018-2019
Domane ALR Disc (standard mount derailleur) – 2018-2019
Domane SL Disc Thru Axle (standard mount derailleur) – 2017-2019
Domane SLR Disc (standard mount derailleur) – 2017-2019
Emonda ALR Disc (standard mount derailleur) – 2019
Emonda SL Disc (standard mount derailleur) – 2018-2019
Emonda SLR Disc (standard mount derailleur) – 2018-2019
Madone SL Disc (standard mount derailleur) – 2019
Madone SLR Disc (standard mount derailleur) – 2019
the correct hanger of the bike ... easy to locate on their web site .. price is good... delivery very fast. The bike is now running 100% with the Shimano Di2.
Arrived on time and intact and it was the correct item. I just hope I never have to use it
The right item delivered quickly
