interesting, sp00ki. wouldn't have thought to spend the time to measure out each set up. in terms of just weight, i'm surprised that the levers and calipers weigh more. every time i pick up a coaster brake hub, they just seem so...heavy. though the ability to backpedal is lost (though that's negated with the new ability of sweet skids), i might just put a coaster brake into a 700c wheel based upon the weight "savings" alone. that, and there's so much less to care about mechanically. let's hope my chainstays can withstand the abuse.