I am currently away from home due to work, its been at least six months now. I am debating when I return if i should buy a new bike, something like a Trek Madone 4.7 or a Specialized Cronus or upgrade my current bike which is a GT Transeo. I mostly do road cycling for fitness/pleasure, with some smooth trails, if any. My conundrum is, if I upgrade, can I modify my bike to be more similar to a road/cyclo-cross bike or because it is a comfort bike maybe I should get a road/cyclo-cross bike?