Once you accept weight weenidom, you are lost. Along those lines I have had tremendous good experience with lightly used Zero Gravity Ti brake calipers. They are only 195g and are always available on ebay. I have never paid more than about $165 for them and have always been completely satisfied. Work great, good condition used, pads are in good shape, and so on. Now that would be a weight savings! If you should go that route, be sure what you buy is post-2005 when some significant design improvements were made.
Last edited by rpenmanparker; 07-21-13 at 08:55 AM.