The TT bikes have less steep headtubes, longer top tubes, and lower BBs. Not too drastic in any case, but why build something for training that wont actually help all that much? Like my post said before riding fixed doesnt actually help your bikinig technique, and with a different set up bike, it wont help your aero technique either. Riding a fixed gear for commuting or out for fun is one thing, but if youre serious about using it for a training tool I would highly reconcider.

If you decide you want a bike for riding around for fun or commuting I wouldnt recomend that frame for a few reasons. But it would make more sense than using it for Tri training.

But if you want to do some bike specific training that isnt tri/tt you live in a city with a velodrome, and that frame would make for a pretty decent lower end track racer. I dont know how much track racing would help your tt/tri skills but it would definatly help your leg power, on bike recovery, and bike handling skills. You might want to check it out. The velodrome's website is http://houstoncycling.org/