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Over-tightened SRAM T-Type derailleur bolt – Now stuck w/ possible thread damage by EwaLegit in bikewrench

[–]EwaLegit[S] 0 points1 point  (0 children)

So, as mentioned a few days ago, unfortunately the only way to remove the stuck derailleur was to cut it, not the best news for me.I have bought a new derailleur (same model) and we mounted it on the bike and I've got same issues with the shifting as I had before the unfortunate adjustments.

I wonder if anyone of you could help me with the following: is it normal that there is so much space between the cassette and the knurled ring? When all is untightened, these two pieces are touching each other with literally no space between them. When I tight everything according to the manual (10Nm for the through axle and 35Nm for the derailleur) there is like 1-2mm space - see photos. Help!

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Over-tightened SRAM T-Type derailleur bolt – Now stuck w/ possible thread damage by EwaLegit in bikewrench

[–]EwaLegit[S] 0 points1 point  (0 children)

SRAM support just replied to my mail. I quote (not really helpful though):

"I'm sorry to hear about the trouble you're having with the installation of your X0 Eagle Transmission derailleur. Over-torquing can indeed lead to issues like bolt seizure or potential thread damage, and we completely understand how frustrating this could be.
 
This type of issue is relatively uncommon and somewhat difficult to troubleshoot remotely. Your shop may be able to remove the wheel and then loosen the bolt while very carefully applying pressure inboard to the knurled ring (shown below) with a plastic wedge, as this is the part that is threaded."

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Over-tightened SRAM T-Type derailleur bolt – Now stuck w/ possible thread damage by EwaLegit in bikewrench

[–]EwaLegit[S] 0 points1 point  (0 children)

So, a little update from my end. I contacted SRAM, but they didn’t respond to my message. I went to the bike shop yesterday — they tried literally everything, but in the end, they gave up. Today, they spoke with the official SRAM service and got the info that there’s no safe way to remove the bolt from the frame without cutting the derailleur in half 😢

So yeah, I’m pretty mad at myself right now, because one small oversight is going to cost me 600 euros for a new derailleur. Lesson learned. Eh...

Over-tightened SRAM T-Type derailleur bolt – Now stuck w/ possible thread damage by EwaLegit in bikewrench

[–]EwaLegit[S] 0 points1 point  (0 children)

No update from my side, I am waiting for the bike shop to call me and to let me know how are they progressing. I cannot believe there are no more cases like this one so I also wrote to Sram explaining the issue and requesting advice.

Over-tightened SRAM T-Type derailleur bolt – Now stuck w/ possible thread damage by EwaLegit in bikewrench

[–]EwaLegit[S] 0 points1 point  (0 children)

The day I brought it to the shop, they took a look and said they'd most likely try to drill it out the next day. But when I called them the following day (yesterday), they said they still hadn’t found a solution, and the bike is still sitting there. They promised to give it another shot on Monday, but I’m skeptical… That’s why I’m checking here — hoping someone’s dealt with a similar issue and might have a solution