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  1. #1
    Senior Member
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    Greatly improved shifting after chain lubing the derailleur

    I was having a bunch of problems with my Shimano Acera shifters, both the front and rear derailleur over the past few weeks. The problems had started really slowly; first I lost efficiency with shifting to my high speed front gear (danced between 2/3), then I lost my 7th rear gear (danced between 6th/7th). After another wipeout, I lost the entire 3rd front gear.

    I had cleaned the bike after each ride and applied extra dry chain lube to the chain with no improvement. I tried turning the derailleur adjuster knobs, which worked to get better shifting to the biggest or lowest gear, but invariably, if I cranked it up to the biggest gear, I'd actually lose the small ones, and vice versa. So that simply replaced one problem with another one.

    On some advice on this forum, I squirted some lube into my derailleur and a drop or two into the cable housing. I'm not sure if this did the trick, but I just rode my bike today, and everything's totally back to normal and working 100%. No gear dropouts at all.

    Was it the lube, or do you think something else did the trick?
    =======================================
    Cervelo P2C Dura-Ace 2008

  2. #2
    Future= Your Boss evanatorx's Avatar
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    I'd still get it looked at...unless the magical bike fairy fixes it while you are asleep

  3. #3
    Senior Member iamthetas's Avatar
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    I have to drop some in my housing every once in a while too.
    if you can get the use of a compressor try blowing it out next time before relubing but watch out that it doesnt fly back and hit you in the eyes. there can be a lot of small gunk in there and compressed air can make it fly all over. this will also prevent build up of gunk that may stick to the lube you put in.
    I use Triflow to degunk( if it starts to act up on the trail) and Progold to keep it slick, since it doesnt leave a residue
    for the creation was subjected to futility,not willingly , but because of Him who subjected it in hope...that he might be the firstborn among many brethren. Romans 8:20-29
    the truth may not always be popular but its always true
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