hillzofvalp
01-30-11, 06:14 PM
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..
Framebuilders - Should I add extra bottle mounts?
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mudboy
01-30-11, 06:20 PM
15lbs is way too much for a rivnut in thin aluminum IMO
hillzofvalp
01-30-11, 06:32 PM
15/4 pounds too?
mudboy
01-30-11, 06:44 PM
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.
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.
hillzofvalp
01-31-11, 12:49 AM
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
mudboy
01-31-11, 05:08 AM
What is it that you're trying to carry?
hillzofvalp
01-31-11, 11:13 PM
Battery pack. It would rest in lower corner and occupy about 1/4 of area between all the tubes.