I have one. I like it but don't have all the nitty gritty you might want answers to mainly b/c I don't use it as a TT bike. It's my road bike. Fairly tight road geometry 74/72 and it's fine for me. I will say at that price it's a very good value for an aero frame that can (at least in my case) double as a road bike. Other sizes, I don't know. A little problem with the front fork dropouts...a little off and had to modify slightly. I modded the whole bike with a custom wiring harness (pre-ultegra Di2) with an internal Li-Po battery in the seat post. Not the lightest setup obviously probably 17 1/2 lbs as is.