Shog, you nailed it. I'm three bills and I ride a carbon-fiber frame with Deep-V wheels and I haven't had any problems. Wait, there was one problem...I spent two years riding a hybrid on metric centuries and century rides because all of the "experienced cyclists" told me I was too heavy for a road bike. They were well-intentioned and had a lot of miles under their wheels, but they weren't Clydes. I finally decided if it breaks, it breaks, and bought a road bike. I wish I had done it two years ago. I also agree that a lot has to do with how you ride. I avoid potholes and I don't bunny hop curbs.