Not sure about a full carbon frame since I don't have one just yet.. but have ridden 10k miles on a full Ti frame including 3 crashes and 2 stupid falls.. the frame is pretty indestructable, unlike my body, it is also very comfortable with the help of a carbon seat post, and stiff enough to chase down sprints.. I also have a Carbon/Ti combo and it is not as stiff but this may be due to the choice of wheels, topolinos, currently being used.. will let you know mid summer when I replace the wheels with a stiffer set.. The combo ride is even softer.. but not sure about durability of the frame.. only 3.5k miles so far... 85% of my miles are on NYC roads...