Shifter hard to move
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  1. #1
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    Shifter hard to move

    My left shifter, brand new, is very hard to move. You practically need two hands to shift the front derailleur. Any ideas?

  2. #2
    'brifter' is a lame word.
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    You're gonna ask this and not provide any info about brand/model?
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  3. #3
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    Shifter make and model? Bike make, model and year?

    Is the bike new or just the shifter new?
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  4. #4
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    Quote Originally Posted by coondogger View Post
    My left shifter, brand new, is very hard to move. You practically need two hands to shift the front derailleur. Any ideas?
    Assuming it does shift, albeit with difficulty, here are my ideas:

    *Cable somehow misrouted through the shifter body (though without knowing the make and model of the shifter, I can't say if this is mechanically possible to do and still retain shift capability)

    *Cable constricted/impinged in its travel path (e.g., a cable binding against a stop)--though this isn't normally a "two hands" level of resistance

    *Cable frayed (possibly damaged during installation), so that bits of frayed cable prevent smooth cable travel

    *Shifter pivoting mechanism misassembled, damaged, or otherwise compromised, so that cable binds during shifting

    *Front derailleur isn't well-lubricated, or is damaged/impeded, so that cable shifts aren't enough force to move the mechanism

    It would help if you could further describe the situation. I'm assuming that the shifter is mounted on a bike, and that it's not an electronic system, but make, model, etc. would be useful for diagnostic purposes.

    Also, have you tried to shift the derailleur by simply pulling on the exposed cable along the left side of the downtube (basically, bypassing the shifter)? If it shifts properly, then the problem is "upstream," almost certainly in the body mechanism.
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  5. #5
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    Take the cable out. I assume you can figure out what how easy or hard it is to move then will tell you.

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    Is this the right forum for a question this "General"?
    Too old to ride plastic

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    Quote Originally Posted by velodog View Post
    Is this the right forum for a question this "General"?
    Not to worry, the OP posted the same problem in the General forum too.

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    Shimano shifter. Recently installed on my 2019 emonda 5. Groupo is ultegra. The small shifter works; moves easily and derailleur responds smoothly to move chain to smaller ring. Large lever is very difficult to move, although once budged it actuates the derailleur without problems. The shifter is new because the original one broke and was replaced under warranty. That was several weeks ago.

  9. #9
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    I see new cables in your future~!
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  10. #10
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    So do I. Teflon, to be exact. But they don’t change a thing.

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    I'd like to see a photo of how the cable is fixed to the derailleur. It kinda sounds like it may be set up wrong.

  12. #12
    'brifter' is a lame word.
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    Quote Originally Posted by 202cycle View Post
    I'd like to see a photo of how the cable is fixed to the derailleur. It kinda sounds like it may be set up wrong.
    I'm thinking this might be the problem. But this is a new R8000 derailleur?
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    Not set up wrong. Been double checked. One other thing. The lever starts off reasonably easy, then becomes very hard to push the rest of the way. Like a bow that stacks.

  14. #14
    'brifter' is a lame word.
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    So the shop that installed it hasn't had a moment and called Shimano? If they're sure it's set up correctly and won't work why haven't they taken the initiative and gotten in touch w/ Shimano?
    I'd undo the cable from the derailleur and put tension on it while holding it in my fingers. Actuate the shifter and see what it feels like. If it's smooth and pulls/releases properly you can eliminate the shifter from the problem. Check the cable routing next. There are all sorts of things that be done improperly, it's impossible to diagnose them all via the interwebs. Sounds like your shop isn't the most competent.
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    OK, let's do a "root cause analysis". We have 2 options here:
    1) The unit was installed incorrectly
    2) the unit is defective

    If #1 is the case, we have 2 options:
    a) If you installed it, take everything apart, and find what you did wrong
    b) If the bike store installed it, they should do the same

    If #2 is the case, then whomever sold it to you needs to replace it.

    BTW, if the bike shop installed it and sold it to you, it's their problem. If they either can't or won't make it right, it's time to find a better shop. FWIW, my experience with bike shops is that probably 2/3 of the people they hire to repair bikes are unqualified and or incompetent.
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    Eliminate installed incorrectly. The bike shop didn't install it; a former engineer who is now a bike mechanic installed it. He used to be a mechanic with the largest Trek dealership in Wisconsin.
    Quote Originally Posted by No Time Toulouse View Post
    OK, let's do a "root cause analysis". We have 2 options here:
    1) The unit was installed incorrectly
    2) the unit is defective

    If #1 is the case, we have 2 options:
    a) If you installed it, take everything apart, and find what you did wrong
    b) If the bike store installed it, they should do the same

    If #2 is the case, then whomever sold it to you needs to replace it.

    BTW, if the bike shop installed it and sold it to you, it's their problem. If they either can't or won't make it right, it's time to find a better shop. FWIW, my experience with bike shops is that probably 2/3 of the people they hire to repair bikes are unqualified and or incompetent.

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    The new shifter is still stiff, but at least moves.

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    Quote Originally Posted by coondogger View Post
    Eliminate installed incorrectly. The bike shop didn't install it; a former engineer who is now a bike mechanic installed it. He used to be a mechanic with the largest Trek dealership in Wisconsin.
    These threads boggle my mind. The OP starts a thread by saying, 1) this thing on my bike does NOT work, and 2) so far no one can figure out why, so 3) please help me figure out what’s wrong, BUT 4) do not under any circumstances suggest that the installation was incorrect!

    Somehow the OP, who doesn’t know what’s wrong, just knows with 100% certitude that there is nothing wrong with the installation.

    It is HORRIBLE HORRIBLE logic.

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    Quote Originally Posted by coondogger View Post
    Eliminate installed incorrectly. The bike shop didn't install it; a former engineer who is now a bike mechanic installed it. He used to be a mechanic with the largest Trek dealership in Wisconsin.
    A guy who used to be an engineer before he used to be a bike mechanic?

    What does he do now, mow lawns?
    Too old to ride plastic

  20. #20
    'brifter' is a lame word.
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    Quote Originally Posted by coondogger View Post
    Eliminate installed incorrectly. The bike shop didn't install it; a former engineer who is now a bike mechanic installed it. He used to be a mechanic with the largest Trek dealership in Wisconsin.
    None of this matters. If the guy was an engineer he's still an engineer. Because he worked at the largest Trek dealer in WI means absolute dick.
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    Quote Originally Posted by cxwrench View Post
    None of this matters. If the guy was an engineer he's still an engineer. Because he worked at the largest Trek dealer in WI means absolute dick.
    Engineer does not equal bike mechanic does not equal competency, and btw the most "redo" work I do on new bikes are treks. Cycling in Canada and Wisconsin is a half year outdoor sport, which doesn't attract the best talent to bike stores. My bet is on the install.

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    Quote Originally Posted by coondogger View Post
    Eliminate installed incorrectly. The bike shop didn't install it; a former engineer who is now a bike mechanic installed it. He used to be a mechanic with the largest Trek dealership in Wisconsin.
    engineer.jpg

    engineer?
    Too old to ride plastic

  23. #23
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    hEy... I'm a n engineer & my bike is shifting fine!
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  24. #24
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    Quote Originally Posted by cxwrench View Post
    None of this matters. If the guy was an engineer he's still an engineer. Because he worked at the largest Trek dealer in WI means absolute dick.
    There are those who know theory and there are those who know practice. They aren't necessarily mutually exclusive, but I have known some engineers who are totally ham fisted.
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  25. #25
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    Could it be FD vertical position is wrong such that when trying to shift up the chain is getting mashed up against the large chainring in a bad way?

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