Originally Posted by WithNail
well think of it like this, square tubes are much stiffer than ovalised tubes. So these tubes, even thought much of the points are rounded, are probably stiffer than round ones.
Ummm, no. Large diameter tubes are stiffer than skinny ones. Square ones look "cool" and are probably a bit weaker and flexier than round ones made of the same amount of material. If Colnago made frames from the same amount of steel that goes into those star tubes, but with larger diameter round or oval tubes, it would be stiffer.
Of course, wild tube forming can make a frame be, say, laterally stiff and vertically compliant etc., but I'm not seeing that on the Colnagos. All the tubes are like all the others, and are symmetrical. They are just made to look funky, whatever the marketing department say about them.