What im wondering is if you need both. I have an 2003 foes fly with a 888rc, mavic d321 rims on magura hubs, hayes hfx-9, mrp, raceface cranks, chris king. I dont need a seperate bike for each? I can race DH, do urban and ride freeride all on the same bike right? Ive heard some people say you should have a DH only frame, and a FR only frame. Im just wondering if this is valid at all or if im set. Also wondering if i could race a foes fly as cross country and if so what would i need to do? (i.e. lighter wheels or what not?)