I think it's also a disadvantage that it isn't sold where I live, that the company seems to be small and without a proven track record with warranty, no LSB support and probably less/no leverage over TQ when it comes to motor warranty.
No, but I had the same idea/plan.
www.fidlock.com
www.etsy.com
Hold the other crank arm so it doesn't move.
Just about the only thing I can think of is to hacksaw a ring
It would just rotate
Thanks, ur right, I forgot they loosened forward. I don't think you can even hack it off as you couldn't cut into the threaded area. He's gonna have to have that sent in to get serviced. Motor may have to get taken apart to do it.....unfortunately probably not a warranty thing since its user error.
Maybe he could try getting something to clamp onto the face(s) where the chain ring would normally sit and using that to stop it rotating?! Bit of a long shot though....
It still spins unfortunately
Don't feel too bad re this... I did the same thing when tired at the end of a long day
... I had only hand nipped it up and hadn't yet torqued it - but it was still tricky to undo.
We discussed this a few posts earlier. You may need to take it in, motor might need to be taken apart or sent in unless there is some way that they can lock the motor that only tech's know about.. You can't cut it out as you have no access to the threaded area. Good luck. I'd bring it to Trek/TQ, seems like they are the only option.
MY LBS has spoken to Trek NZ and they have no clue on how to deal with it. They said you'll likely need a new motor! I've got insurance if required but that seems excessive! There is hopefully a tool I can find somewhere, an option may be to cut down chain ring to use as a tool, either way a right muddle.
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Try emailing or reaching out to TQ.I've spoken to Trek NZ and they have no clue on how to deal with it. They said you'll likely need a new motor! I've got insurance if required but that seems excessive! There is hopefully a tool I can find somewhere, an option may be to cut down chain ring to use as a tool, either way a right muddle.
Not much space. About 6.4mm. Found a good tool but it was 7.2mm unfortunately!Don't feel too bad re this... I did the same thing when tired at the end of a long day
Iirc I just managed to get a thin cone wrench in behind and angle the jaws to a position against the chainring mount faces such that it provided just enough resistance to allow me to start the undo of the lockring. But that would definitely not work for 50Nm (and even a strap wrench using a thin wire cable may really struggle to get enough purchase imho).
I am thinking a thin "tool" similar to a cone wrench of the jaw size needed might need to be created / bought. Can you see how much clearance you have for a tool to slide in?
You could potentially dremel the edge of the lockring to expose more area to clamp the inner portion. You'd need a new lockring but it'd be cheaper than buying a new motor if Trek won't warranty it.
Thx!
I'll write a mail to Fidlock support and keep you posted.
Final update:
Yeah that's the plan I've decided, I'll create a home made strap wrench and give that a crack. Hopefully it will come off and I'll avoid a hand injury. I'll be sure it share the outcome for the benefit of the next person who does this.
Sunset MTB in Cardiff
Hope nothing else rattled loose. Congrats on the fix, glad it worked out for you. If something else goes wrong.....Just don't tell Trek about the impact driver and warranty will be perfect.
Nice!! Glad you got it out.
