I bought a carbon/Ti Seven earlier this year, and Seven said NOT to put the bike on a trainer. (In fact, doing so will void the warranty for my Seven model.) The Seven replaced my carbon Felt (which was no longer rideable due to a dented chainstay), so DH reinforced the chainstay with duct tape and a metal bar (tres chic!) and that is my trainer bike. I took the measurements from the Seven and set up the Felt as close as possible to the Seven. FWIW, DH has a carbon Aegis tri bike and the builder said there was no problem with using that bike on a trainer.

Alex