light and strong
I have these in my mavic ksyrium equipe wheelset, running mavic tires over them with about 1,800 miles on the set currently. I run them at 110-116psi. Have hit some gargantuan potholes, ran over glass, etc, in the time I've had these on and never had a flat. Within a day or two of pumping them up they tend to "leak" down to about 85psi and stay there. I check tire pressure and inflate before every ride as a habit, so I dont mind that. after having bontrager tires blow out for no apparent reason on me, I'm a fan of these.