I posted this in the "road" forum, decided to bring it here.......here goes:
i have a triple crank right now (52/42/30) with a 9-cog rear cassette (12-25). all came stock, full 105 components on my specialized allez (2001). i want to get a compact double (close to 50/36). can i just get it and slap it on (with some FD adjustments) or will i need to overhaul the whole drivetrain? new FD? new shifters? just trying to get a feel for the right way to go about this.....thanks!
ps-after a couple replys in the road forum, my answer to the "why?" question is because i never use the highest and lowest gears that i would be losing, and the weight savings (i know, minimal) and the convenience is worth it. plus i just want it.