Review on 🚲 Agleam Derailleur Hanger for Stumpjumper, Hardrock, Hotrock, S-Works, Rockhopper, and More: Enhanced Bike Part for Improved Performance by Mike Lawler

I compared the derailleur hanger to the old one and all measurements taken were within 1/100th of an inch. You can also see from the photos that the fit is perfect. It took a little tweaking when I got them on the bike, but then it worked great. The only difference between this one and the old one I had was that the bolt was a bit shorter. It was 100% usable, but I still went with the old screw because it completely went through. You can see in one of the pictures that the bolt that comes with this derailleur hanger doesn't go all the way when it's on the bike. But I'm sure your old bolt is fine and you can choose any of them and any of them will work perfectly. Please check the photos for details.