Hmm.. there's a thread in the SMBF forum where pple are discussing about lightweight bottle cages.
Some are 25g, some 18g and someone mentioning one that weighs 5g?
Interesting to note that a Minoura Dura Cage weighs about 36g and costs $12, while a Arundel carbon cage weighs 25g and costs $60.
All that $$$ for 11 miserable grams???
I seriously doubt an extra 11g worth of bottle cage weight is gonna slow you down that much even if you are a racer.