When I originally bought this, I was attempting to build a "weight weenie" special. At 147 grams, it was the lightest 10 speed cassette I could find at the time. I'm sure there are lighter ones, but they're not Campy. This can't really be called a full titanium, because the 11 tooth cog and lockring are steel. I found out the hard way that the weight of a cassette isn't nearly as important as the usable range of gears. I can't push the 11, and the lowest gear (21T) isn't (for me) low enough. For this reason, this cassette never got much use, The cogs are in excellent+++ condition.