Lose Derailleur Hanger
Posted Sep 24, 2021, 1:09 AM UTC
3414
I´m 99% sure this is the new Sram UDH derailleur.
From Srams website:
Features
-The Universal Derailleur Hanger – or UDH – consolidates thousands of mountain bike derailleur standards.
-It offers unparalleled derailleur protection. And perfect alignment. Guaranteed.
-The UDH is designed to rotate rearward in the
event of impact and features the ability to “re-rail” the chain back
onto the small cog.
-The UDH works with all commercially available MTB and E-MTB drivetrains from Shimano to Box to Sunrace.
12
It's a good idea for sure, next thing would be to change derailleurs to fit via a spline system so there's no possibility of them working loose, stripping threads can't happen (also expect it would be lighter), if all new bikes are using a universal hanger it could actually be feasible to change over.
4
This is the answer.
Just be careful with overtorquing the thru axle, I broke mine quite easily. These UDH hangers are $15 to replace and they’re half plastic. They can cause creaking really easily I found.
Or you can buy a billet aluminum version from NSB
1
Some hangers rely on the clamping force of the hub and through axel. Install the wheel and make sure the hanger is pushed forward. In a crash the hanger will slip backwards and maybe prevent some deraileur damage.
6
It seems like the hanger might not be installed correctly on the frame, not 100% sure but I wouldn't just torque down on it because of that.
Suggest crosspost to r/bikewrench
2
It’s installed correctly and it’s supposed to pivot like that. Make sure you have the big nut holding it in the frame tight, 25nm is pretty damn tight. The hanger should be pivoted all the way forward when you tighten the axle the idea being if you smack your RD from the front the hanger will be able to pivot out of the way a little
2
It is supposed to be like that. Its the new universal derailleur hanger.
2
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1
I definitely wouldn't lose the derailleur hanger, it's a pretty important piece for your bike and you should keep it.
1
Flip it other side round
0
I’m not an expert, but it kind of looks like the hanger should be rotated 90 degrees so the flat part lines up with the flat part on the frame to keep it from twisting. But then I don’t know if the derailure would move right.
This
After looking closer, I don’t think this is the case. There is a cut out in the hanger for the hub to slide into. If it was rotated 90 degrees, the tire couldn’t drop out the bottom. I think maybe more likely the lower comment about the through axle locking the derailleur down is more correct.
This is correct. I tightened it down in this position and it shifts great now!
You could call that a win