This first cheap weight tip (don't worry I'm not going to give myself a T shirt, because I already have) is something Jonathan Page rocks on his bike.
Front brake hangers weigh a good amount. More than they really need to. Especially when there's an option like this out there....
By using a rear brake stop like this:
and putting it on your bike like this:
(taken from Josh's Rocklobster, Plus One Lap bike #10)
You can save some major weightage. How much you ask? Good question, look at this:
Before: 29.7 grams
After: 5.1 grams
Thats like 25 grams people. Hello? Do 10 more things like this and were talking over a half pound.
Issues: Some grinding may be in order and this only works for a stem with a front plate.
But it is super cheap, heck maybe free if you have a rear cable stop in your toolbox.
If you have a weight savings tip we need to know about, email me at plusonelap at gmail dot com Remember, while not critical, pictures are appreciated.