The small amount of money I can get this for locally has me scrambling for an idea of how it would fit. As far as I can tell the biggest size a ZR 3000 was made in was a 60cm which should theoretically fit me given its old school geometry. He measures 25" for the ST which I'm guessing is including the extension above the TT. If anyone could offer up some knowledge about how GT's sizing was done and whether a 6' male with a 34.5" standover would retain a deep voice using this as a daily rider. It's offered as a frame only and I don't have a set of 700c wheels to take over and size it up myself. The picture is not of the actual bike and is a stock photo of the exact frame.