New Replacement Derailleur Hanger
Derailleur Hanger 321
All Wheels Manufacturing replacement derailleur hangers are produced in Colorado to exacting tolerances.
CNC machined 6061 aluminum
Black anodized finish
Attaches to frame with (2) M3x12 Flat Head Screws
Fasteners/Bolts Are Included
Replaces Trek Part #W524188
Manufacturer Part Number: DROPOUT-321
811079024572
Fits:
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
Compatible with Shimano, Campagnolo and SRAM Rear Derailleurs
Made in the USA
**Assure that your hanger looks like the photo in this listing prior to purchase.**
NOTE: Many derailleur hanger-destroying accidents are caused by improper adjustment of the derailleur PRIOR TO THE ACCIDENT. Do not simply install a new derailleur hanger and forget to properly adjust the derailleur.