Originally Posted by
spare_wheel
It may be less crash resistant than metal but in terms of fatigue resistance -- carbon beats any metal frame.
IMO if you want a commuter frame to last 20 years, crash resistance should be a high priority. The bike is likely to get banged around some in that much time. If it were me, I would look at Ti built to a touring spec, something similar to a Lynskey Backroad.
Originally Posted by
spare_wheel
For example, on my commute home I often take 6 deep road ruts at 25+ (I get a bit of air). I also bunny hop a fair amount.
The design of the frame matching it's intended use is more important than the material it's made from. Ernesto didn't design his lightweight road bike to be bunny hopped for 10 years. That's MTB riding!