Team GT races GT's. It's that simple. With the exception of a longer top tube here or a shorter chainstay there, these are the same bikes built by the same people as any GT in any bike shop anywhere. This is a fact. No custom tubing, no custom construction techniques. Pro Team rider Gerhard Zadrobilek races a stock 19" Xizang, with 32 hole wheels. Attention McGyver: here's a nifty Gerhardism: he drills a second valve hole in his rims (opposite the original) and installs an extra inner tube (uninflated) in his race wheels. If he flats during a race he simply reaches down and inflates the second tube. Pretty trick, huh?