I am going to buy some Avid BB7 Disc Brakes for my 2005 Marin Hawk Hill, which is disc brake ready(according to Marin product specs, both front and rear hubs are Shimano Disc, 32 hole). I'm looking at the site where I'm getting the Avid's and they offer a lot of different sizes: like front 160mm, 185mm, or 203mm etc). How do I know what size I should get?
When going from "linear pull" brakes, whatever that is, do I need to replace brake levers etc? Or is it simply a matter of removing old brakes and installing new disc brakes?
Any tips, suggestions, etc? Thanks!