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  1. #1
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    Should I add extra bottle mounts?

    Can I add my own water bottle mounts to an cannondale cad3 frame? I'm looking to support a load of around 15 pounds between the 4 existing mounts, but am unsure if it would stress the frame at all..

  2. #2
    Senior Member mudboy's Avatar
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    15lbs is way too much for a rivnut in thin aluminum IMO
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  3. #3
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    15/4 pounds too?

  4. #4
    Senior Member mudboy's Avatar
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    A large waterbottle weighs 28oz and is supported by 2 bottle bosses. A single boss supporting 60oz is probably pushing it; the result, a ripped out rivnut, would undoubtedly include distortion and fatigue of a pretty thin tube.

    Let me put it to you this way: I sure wouldn't ride it. A steel frame made from 9.6.9 tubing could probably handle it.
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  5. #5
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    I think I will skip going into the frame and instead build a pack around the frame with straps and clamps in lots of places. My bianchi tsx is like... 7.5.7

  6. #6
    Senior Member mudboy's Avatar
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    What is it that you're trying to carry?
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  7. #7
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    Battery pack. It would rest in lower corner and occupy about 1/4 of area between all the tubes.

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