I am thinking of buying a set of ritchey carbons. I hear they are zipp 404's and are meant to be pretty good wheels. I am looking for a set for TT's, Crits and Triathlons. I am 6ft tall and weigh 177 lbs. Does anyone have anything good or bad to say about the wheels. Also this is my first post so I hope this is enough info for you guys to help me with my question.