with the "Newer" models... Yes I know the Apalache is the latest encarnation of this wonderful design, but what i want to know is the Diferences (inprovements, weakeness, compativility, etc) in between the early Balfa BB7 like this 2001 model. and the newer (2002-2004) as far as i can tell the main diference is that the Linkage plate on the old models is Inwards(pulley is on the outside) when on the newer frames is outwards (pulley located in between the frame and the linkage) also my friend david (Owner of tis frame) is as much of a geek as I'm and will love to make the bike as best as possible (mostlly for the fun factor of thinkering with it), like updating the linkages, so the question is can this be done..? (update to the newer type plates) also how about a floating rear brake...? any advice, leads tricks will be gladlly apreciated. I got to ride the bike last sunday and is totally amazing specially if you take into acount how simple and strong the design is and that you can still run a normal 135MM hub with out much flexion of the rear end.. thanks as ussual for your brainy advice.