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pinched/ovalized downtube @ BB(3 posts)

pinched/ovalized downtube @ BBjrm
Dec 22, 2003 12:29 PM
My frame has a pinched/ovalized downtube at the junction with the BB shell. So whats the deal? advantages/disadvantages?
Bianchi?ColnagoFE
Dec 22, 2003 12:37 PM
Anyway I suppose they will tell you it's supposed to make it stiffer in some optimal way, but the truth is mostly it's to differentiate the frame from others.
My old univega mtn. bike had it...Spiderman
Dec 22, 2003 12:41 PM
It also makes the tube more "weldable" to the BB shell.