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 315464)

2014 – 2019
Domane AL, ALR, SL, SL Disc 5mm QR
Emonda ALR, SL, SLR
Madone SL, SLR
Speed Concept

2014-2017
Crockett

2017
1-Series
Boone
Lexa
Silque
FX S5,S6
Kids’ Emonda 650
KRX

2016
Silque
Lexa
Boone
7.7, 7.9 FX
KRX

2015
7.7 FX
1-Series
Lexa, Lexa S, Lexa SL
Lexa SLX

2014
1-Series
Lexa SLX

2013
Lexa SLX
2/5/6/7-series Madone
2/4/5/6-Domane