I just got my Specialized Hardrock Pro Disc the other day and according to the website, it's supposed to have Avid BB5 mechanical discs... Well, I'm looking at them thinking that they look pretty nice for entry level disc brakes and decide to look @ Avid's site and find that mine look NOTHING like the BB5 and look identical to the BB7's. They say BBDB on the sticker on them, so apparently I somehow managed to get a free upgrade to the BB7's? Or did I get the top of the line 04 model? Basically, is the BB7 the same thing as the BBDB? Also, has anyone else had the same sort of thing happen?