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  1. #1
    Join Date
    May 2007
    Posts
    1,249
    Yeah take it to your bike shop, it happened with both my mountain and road bikes when I first had them. I also find that sometimes I have a hard time getting into the big ring in the front if I'm in certain gears in the rear so I need to shift on the right side a gear or two and then shift into the big ring. Probably means it's time for a tune up, but in the middle of a long ride I've got work with it!
    Help me reach my $8,000 goal for the American Lung Association! Riding Seattle to D.C. for clean air! http://larissaridesforcleanair.org
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  2. #2
    Join Date
    May 2009
    Location
    Massachusetts
    Posts
    21

    Chain

    I wasn't sure if my chain was long...just certain times the chain doesn't catch the so I kind of slip...I AM NOT explaining this well...sorry. It doesn't seem to catch the front chain ring. I will bring it to my LBS and see what she says.

  3. #3
    Join Date
    May 2007
    Posts
    1,249
    Don't mind her random caps locks people, she has message board tourettes

    She's my real life BFF, and very new to the message board thing.
    Help me reach my $8,000 goal for the American Lung Association! Riding Seattle to D.C. for clean air! http://larissaridesforcleanair.org
    http://action.lungusa.org/goto/larissapowers

  4. #4
    Join Date
    May 2009
    Location
    Massachusetts
    Posts
    21
    I Like All Caps! It Fits With My Bubbly Personality. So Not Anger...excitement!

  5. #5
    Join Date
    Sep 2006
    Location
    Washington, DC
    Posts
    1,315
    If you mean that you have trouble getting the chain to get into the big ring (but it shifts ok on the rear gears) then there are 2 likely options. One is that the front derailleur cable is too loose. You can tighten it at the barrel adjuster on the downtube by turning it counterclockwise. Try one partial turn (there are knobs on the barrel) at at time. If after a few turns this doesn't fix the problem, then the upper limit needs to be examined. You can look up instructions on the Park Tools website or go to the LBS for an adjustment. Note that often it will shift ok on a stand (at the LBS) but has trouble under load (when you're on it), so it's nice to teach yourself how to do this. Do not loosen (or tighten, but in this case you'd loosen it) the limit more than about 1/8 of a turn at a time.

    Also, cables do not stretch. If they are truly stretching, then they are probably fraying and/or slipping and are about to blow. This happens at the end of cable life, not at the beginning. Symptoms might be repeated spontaneous loss of cable tension. What happens with new cables is that they become more firmly seated in the housing over the first several rides just due to normal tension after installation. If you have persistent problems with "cable stretch" symptoms, then you might want to remove tension from the cable by shifting into the smallest ring and cog and loosening the barrel adjusters and the cable at the pinch bolt, then yank sideways fairly hard on the problem cable where it runs along the underneath of the downtube. Use a fourth hand tool or clamp to re-tighten the cable tension at least most of the way and then re-index (get proper tightness) using the barrel adjusters.

  6. #6
    Join Date
    Apr 2007
    Location
    Limbo
    Posts
    8,769
    Another possible reason is you may not be throwing the shift lever over far enough.
    Do you have any problems with reaching the levers?
    2008 Trek FX 7.2/Terry Cite X
    2009 Jamis Aurora/Brooks B-68
    2010 Trek FX 7.6 WSD/stock bontrager

  7. #7
    Join Date
    Sep 2006
    Location
    Washington, DC
    Posts
    1,315
    hmm... or is it that there's a lag dropping into a smaller chainring? That might feel more like a slip. That could be too tight of a cable, a lower limit on the FD that's not set right, or you're shifting from the wrong rear gear (too high on the cassette towards big cogs will mean that there's a huge drop in chain tension such that the shift may not feel smooth or you can drop the chain...too low on the cassette towards the small cogs means that the FD has a hard time pushing the chain to the smaller ring and so the shift is sluggish).

 

 

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