I'm 6'3" and 210, which is about 10 lbs over my racing weight (off season weight gain = beer) and while I've been as light as 185 after five days of climbing on El Capitan in Yosemite, I have generally stabilized at around 200. I ride a custom Dave Arnold frame, (local S. Cal builder) which is sooo sweet. He used oversized Scandium mtn. bike tubing for the three main tubes with Easton carbon seat stays. Hung with Durace and Ksyrium SSC (racing) and Elite (training) wheels.
Myself and the wife after the local Montrose ride
Here's a picture of what real climbing looks like, 2500 feet up El Capitan