I like the idea of having a parking break. why do ya want to shave weight? Ideas are bumper to alum. Titanium exhaust sys, lighter wheels, and 2 ply tires...sprockts and hubs, brake rotors, remove head/tail lights, alum foot pegs, no/plastic skids, less gas, membership to the gym.
LOL, yeah I'm 6' and 195lb's. Unfortunately (well, in this case anyways), I'm muscularly built so I don't have much bodyfat weight hanging around... I could maybe loose 7-8 lb's but not much more than that.