Originally Posted by
merlinextraligh
It's basic math, but with a bunch of variables. Gates system can save 10 ounces or more over a timing chain setup. But as Ritterview showed, with the lightest available 10 speed chain, and very light timing rings, the difference gets much smaller.
So it depends on what chain/rings you're comparing it to.
From a previous post:
"Gates sync belt ring. 95 grams X 2 = 190 grams
Gates carbon drive belt 105 grams
Total weight of the Gates system = 295 grams
42 tooth Hegoa Chain ring. 35 grams X 2 = 70 grams
Campy Record 11 chain 337 grams
Total weight of chain drive system = 407 grams
407 - 295 = 112 grams or 3.95 ounces."
Well, yes. I was using a straight comparison of the components on/off my setup. If using the lightest chain components the difference in weight will be closer.
Mute at this point, since Calfee never did get back to me about 71t sprockets. I figure at this point I'll wait for the CDX to go mainstream and then maybe persue the belt setup again.