I honestly just fail to understand why they thought the concentric BB was a good idea? They had a completely clear slate to do what ever they wanted. R&D Meeting at Mongoloids Bob, "Insanely adjustable people will like that right?" Bill, "Yes" Bob "Carbon, it's hotter then bacon right now should we make our frame carbon?" Bill "Yes" Bob "Throw in our crazy chainstay adjusters as out signature?" Bill "Why not its ugly but it works" Bill "But ummmm, Bob?" Bob "Yes Bill?" Bill "What are we going to do about a suspension design? Bob "Well................" Concentric BB F'iT!