Oops. My bad. I meant to say they were NOT prone to flats. I've been running Veloflex Masters on the Torelli rims, first on the Masi now on the Gazelle, and Veloflex Criteriums (sew-ups) now on the Masi. I have had one and only one flat on any of them. The flat was due to a large screw that went into the front tire. I rode for another mile and a half on the way to work before it went flat.



As I say, except for this one my Veloflex have had no flats at all, at all. When I was running Vittorias (both clincher and sew-up) I had plenty of flats.

Veloflex website claims they have a puncture-resistant belt. It appears to work.

I corrected my error above.