I am 5'8" and, as of this afternoon, weigh 201. I know, I know; I'm too damned fat. The good news is that I am 30 pounds lighter than I was this time last year and I can tell a big difference in my riding.
In April of 2004 I rode up Neel's Gap in Northern Georgia (part of the Tour de Georgia route) and got down to where I was working to stay up over 5 mph. I just got an E-mail asking me to go with some friends to do the 50 mile version of the Six Gap Century, Three Gap. That will be a good test to see how much the weight loss meant to my climbing.
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Wag more, bark less