Thanks for the replies. I am 164lbs give or take a pound or two. I guess I'll read a bit more on them. Until I saw these I had been considering Fulcrum 7 and 5's, Campy Khamsin and Vento's and possibly Mavic Aksium's. These wheels seemed to be considerably lighter but at that price I am worried about the flex and strength, even at my weight. Any opinions on my other choices in comparison to the Xero Lite's?