I'm 6'4", probably close to 200 lbs now, and I ride with some good CAT 3's and 2's and I can ride with them (including my fair share of pulling), but going up the hills, it's all I can do to just to keep that wheel. Going down hill, on the other hand, all the skinny guys are peddling like crazy to keep up with me.

And they love it when I'm pulling. Some have said that drafting me is like drafting a semi.