I laugh at the comments about carbon being fragile (although it certainly can get cosmetic wear). I never seem to sell my bikes and have a variety from the last century. The only ones I have any problems with are the Aluminum ones which seem to be more susceptible to corrosion, and are too brittle to bend without breaking (mostly an issue with dropouts and hangers) Long, long ago, I had a carbon bike fly off my car at 80mph. I checked the frame thoroughly, but no damage, and it is still going strong decades later. The aluminum parts attached to it were trashed of course.