Top & bottom tube sizes?

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1/29/2016 7:33 PM

When i get my tax return back im ordering a custom frame. I know all the geo i want i just don't know the top and bottom tube diameters i want. Whats better 1.25" or 1.38"???

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1/29/2016 7:55 PM

One is bigger than the other.

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"Hey anybody ever make that mistake like right when you wake up in the morning and you believe in yourself?" -Kyle Kinane

"BIKES!" -Tom Segura

1/30/2016 10:43 AM

Yes i know. I'm just wondering if theres any advantage to having bigger tubes

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1/30/2016 10:54 AM

Bigger tubes more surface area to bash off of things

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1/30/2016 10:56 AM

Aaron_Whitmore Jr. wrote:

Yes i know. I'm just wondering if theres any advantage to having bigger tubes

A wider tube will be more resistant, against denting especially.

The theory is : the wider the tube, the less material thickness you need to get the same strenght.
So If the thickness is the same, the wider tube will be stronger.

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1/30/2016 11:44 AM

Larger diameter gives more area to weld. Usually the downtube would have a larger diameter as the weld between it and the headtube will take more abuse. A larger diameter of the same gauge is easier to dent. Which is why straight gauge is often used on the downtube for street frames.

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1/30/2016 2:32 PM

Thanks for all the comments guys.

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