Originally Posted by
noglider
I suspect "quality" of tubes refers to how well they braze or weld together, not now they ride. Better tubes will make a better frame, but maybe not for the reasons we think of.
If all we wanted were a stiff frame, we would prefer heavy "gas pipe" frames.
I still swear that my modded up Peugeot PH10S felt faster/stiffer than my PSV.... That Carbolite framed bike literally whooshed forward when I mashed on the pedals....
Only time the PSV beats it is climbing, where the PSV's lighter weight becomes a factor....