I have a trek y-11 mountain bike with MTB tires for riding the trails here in Austin. My girlfriend bought a road bike and I'd like to ride with her but not make the investment in a road bike right now. Could I just buy some inexpensive wheels with road-like tires instead? I understand this would be a temporary fix but if I enjoy road cycling then I could buy a proper road bike later. My bike (carbon fiber frame) is very light so I figured that it could be similar to a hybrid with road tires on it. Let me know your thoughts. Thanks!