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  1. #1
    Member coolcamaro12's Avatar
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    Bottle Cage concerns?

    I am going to buy a bottle cage for my bike, but I am concerned about tightening them down. Do the bolts require a specific torque amount considering almost every other component installed onto the bike does?

  2. #2
    ka maté ka maté ka ora pdedes's Avatar
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    just don't strip the threads
    By the time you're experienced enough to get something germane out of a test ride, you won't need a test ride.

  3. #3
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    If the cages are plastic or composite, don't tighten the bolts too much or you can stress or even crack the plastic. The damage might not show up for 6 months. Like everything else on the bike, a quick check for loose things should be a habit anyway.
    "Of course you eat too much" (Looigi) There are things people say that are so true you can never forget the wisdom. I still eat too much. Without denial.
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  4. #4
    Member coolcamaro12's Avatar
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    Quote Originally Posted by RoadTire View Post
    If the cages are plastic or composite, don't tighten the bolts too much or you can stress or even crack the plastic. The damage might not show up for 6 months. Like everything else on the bike, a quick check for loose things should be a habit anyway.
    Thank you! I am just really concerned about my first (and new) carbon frame. It just seems like I should be a little more careful than I have been with aluminum and steel bikes.

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    Avoid aluminum bolts (which are supplied with some cages). I put on new cages and within about 6 months the downtube cage bolts sheared off at the frame. Fortunately I wasn't riding, I taking the bike out of my truck at the LBS and when I set it down the cage popped off. I ride steel and they had to drill the remaining part of the bolt out of the frame (which might be a more delicate operation with a carbon frame). The LBS guys put in steel bolts and said they'd seen the same thing with other Al cage bolts.

  6. #6
    Senior Member kleng's Avatar
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    always grease the bolts and don't install to tightly as you can strip out the bosses in the frame, once they are loose it's all over.

  7. #7
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    Quote Originally Posted by RoadTire View Post
    If the cages are plastic or composite, don't tighten the bolts too much or you can stress or even crack the plastic. The damage might not show up for 6 months.
    If you want to go a step further, use rubber washers on both sides of the carbon/plastic cage. This provides a bit of a shock mount & keeps the hard edges of the screw from being a critical stress point. If you can't find a rubber washer, cut a piece of old inner tube to fit.

  8. #8
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    What Kleng said. Just tighten them finger tight, then maybe a quarter turn with an allen key. Just as long as the bottle cage doesn't rattle around it should be fine.

  9. #9
    Member coolcamaro12's Avatar
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    Great advice, Thank you everyone

  10. #10
    Senior Member CactoesGel's Avatar
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    Thanks to everyone as well, learned something here.

  11. #11
    SpIn SpIn SuGaR! FIVE ONE SIX's Avatar
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    Quote Originally Posted by kleng View Post
    always grease the bolts
    i can't stress this enough! and that doesn't just pertain to cage bolts...

    i didn't grease mine the last time, and something happened to the threading on the seat tube threads so now they go in further before they catch, so i had to go to Lowe's to get 20mm long bolts for those two. the original ones are usually 14mm or 15mm long, depending on the brand...

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