People are starting to recognize that the eating disorder-like obsession with body weight for cyclists is not a good thing for long-term performance. OTOH, a lot of us could stand to lose some weight. It's hard to balance sometimes.

For making a bike lighter, there is nothing like buying a scale and figuring out what the problem parts are. Cheaper cranks are often a lot heavier than more expensive ones, that's probably a good place to start.