Originally Posted by
tandemdr
For my own edification, I just weighed a factory Co-Motion timing chain and FSA Gossamer rings at 562g.
The Gates CDX system came in at 277g, or 290g lighter equating to a .639 pound savings, nearly 2/3 of a pound.
Of course, remember the weight savings matters for the whole system. So you're saving (almost) a pound, compared to easily 200 lbs for everything (two riders + bike).