As bike bits can be very expensive,I have instead decided to drill holes in my kneecaps, pull all my teeth out, remove all extraneous flesh and have a good dump before each ride.
I'm afraid this hang-up about bicycle weight reduction does irritate me. I remember seeing one of Alf Enger's time trial machines and it had so many drilled out bits on it, it looked like it was moth-eaten. Probably increased wind resistance too !
At the end of the day it's about the rider, not the bike. Eddy Merckx could have beaten most of us on a Halfords special.