What Our Gearhead(R) Experts Are Saying: "I've swapped in this hanger on Trek frames a few times, and the fit has always been spot on. The machining is clean, alignment is true, and having the screws included makes the job painless. It's one of those small but critical parts I trust to keep shifting precise."We know that a bent or broken derailleur hanger can sideline even the best rides, which is why we keep Wheels Manufacturing's Derailleur Hanger 144 close at hand. Machined in Colorado from 6061 aluminum, this hanger delivers precise alignment and lasting durability, restoring crisp, reliable shifting to Trek, Gary Fisher, and Lemond frames.