foam filled frame?
I know that theres a trick in the automotive world to fill the frame of a car with foam to gain stiffness without a lot of weight. Has anyone ever done this with a bike? Would seem that if you wanted a super stiff but nice riding track bike, it might be a good way to go.
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The foam "trick" in the automotive world is used in the design of stiffer monocoque frames, it's not there to actually add stiffness, just part of the manufacturing. It's also added to silence an otherwise noisy box frame.
Cannondale "fixed" the problem of it's old raven frame from sounding like a drum by filling them in with foam. |
Originally Posted by AfterThisNap
The foam "trick" in the automotive world is used in the design of stiffer monocoque frames, it's not there to actually add stiffness, just part of the manufacturing. It's also added to silence an otherwise noisy box frame.
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i was at a lbs yesterday and they had a disected bottom bracket with about 4 inches of the downtube and seat tube and the seat tube section was filled with foam. The frame was a bianchi aluminum i think but it could have been steel. I'd never seen it before or heard it mentioned before this. This post has no value, go about your business. Cheers.
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yeah, OEMs fill for sound deadoning and stuff like that. People use heavy duty window sealant caulk and just go nuts on their engine mounts too, it actually makes a bit of a difference in how tight everything feels.
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