Originally Posted by
Milton Keynes
That's what I was going to say. Perhaps the OP should work on losing about 30 pounds via healthy eating so he feels comfortable getting back on the bike, and then start working on exercise again. Personally, even though I've never owned a CF bike I think he'd probably be fine, but if there's still a lingering concern then focus on weight loss for a few months first.
Exercise (specifically riding the bike) was and is critical in helping me manage my appetite. I don't actually ride the bike to burn excess calories, but it does help boost my energy and make me want to ride more.
I've gone on a few rides and the bike is fine. I learned to ride pretty light in the saddle on a motorcycle, so that has helped. With my 36 spoke wheels I don't really have any concerns with the type of riding I am able to do right now.