I don't have the ULs, just the DV46Cs (from before they made the UL clinchers, I believe.) Mine weigh 1480g (and I only weight ~170lbs), so not exactly the same thing but I've been extremely happy with them. By far the best bike upgrade I've ever done (other than my recent frame purchase, of course.) They climb fantastically, seem to be plenty stiff, and I was really surprised that the speed-up, especially on flats/slight downhills at 25 - 30mph is very noticeable.