Under BB cable routing issues?- Mtbr.com
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  1. #1
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    Under BB cable routing issues?

    The new Instinct is on my short list to replace my Ripley. I've noticed RM uses under the bb cable routing on their bikes. Seems less than ideal and asking for snagged cables in tech terrain. Is this actually a problem in the real world?

  2. #2
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    Quote Originally Posted by ripn View Post
    The new Instinct is on my short list to replace my Ripley. I've noticed RM uses under the bb cable routing on their bikes. Seems less than ideal and asking for snagged cables in tech terrain. Is this actually a problem in the real world?
    Nope. Never. I've had a few other minor issues. But never snagged it on anything.

    When my Instinct was 2x I once accidentally twisted the shift cables around each other inside the down tube which caused shifting problems, but that was user error (i'm 1x now anyways).

    The only other problem is that my dropper is full housing and will often have the excess housing fall from the handlebars to under the BB, if that makes sense. I have to pull it back up. Its easily remedied with a zip tie. I just keep forgetting to put one on!
    Sometimes you eat the trail, sometimes the trail eats you.

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  3. #3
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    I severed my brake cable when I rolled a rock that I should have jumped, but that is such a small area to hit perfectly that I don't see it being an issue again. My cables collect weeds and junk when I go off-trail, but no other problems.

    FYI, that was on an Altitude.
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  4. #4
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    You're much more likely to tear a pedal or chainring off on a rock than a cable or hose, in normal use they don't hang down anywhere near as far as the chainring.

    Under BB cable routing issues?-web_instinct_c70_c1_profile.jpg
    I'm a member of NSMBA and IMBA Canada

  5. #5
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    Cool. Thanks for the input.

  6. #6
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    I used to think it would wear fast, being exposed to front tire crud, but I've had several and not one issue yet. There are bikes where full length housings make sense, but I've not had an issue with anything related to the bb routing.

  7. #7
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    Other brands have had the cables exit under the BB for many years.
    If you are truly worried grab an iscg05 bash guard and mount it up. That'll help protect your cables a bit but more importantly protect your chain ring and bottom bracket

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