Chinertown
Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: Psycorp on June 17, 2024, 01:47:25 AM
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Hello
I have a possible shifter problem
I'm building up a new gravel bike with a Ltwoo R9 Hydro groupset. While indexing the front derailleur I found that the left shifter will not hold the front derailleur in place while spinning the cranks to complete the shift to the big ring. Unless I continue to put force through the shift lever with my hand the tension between the derailleur, chain and chainring is forcing the shifter back into a lower indexing spot, and so the derailleur is dropping away from the chain, which equals no shift.
This feels like a shifter fault to me. My Shimano groupsets will shift to the big ring without keeping hand pressure on the shift lever, but was wondering if anyone has experience with these to say whether this is normal or not?
Cheers
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unless you're experienced, you can be almost sure it's user error. if your bike has full cable integration, getting a mechanical FD to work is very difficult, in my experience. it's absolutely not plug and play like electronic.
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Normally you have to tension the FD wire more then you think to make it stay in the big ring position. That would be the first thing to try.
Good luck!
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I noticed the same problem with my shifter. It would not hold the most outward position and would just drop to the trim position. The problem in my case was caused by the high limit screw being a bit too tight. It would allow the shifter to "click" but it was in a kind of "in-between" position and would drop to trim. I loosened the screw 1/4 of a turn and now everything is fine now