I bought these in preparation for a 200-mile endurance ride. I rode the entire 200 miles without a single flat. After the ride I noticed some serious punctures in my rear tire that would have destroyed my old tires immediately. The grip is outstanding. I've taken some pretty high speed turns and I felt just a stable as I did upright. The wire bead is tight which makes installation a little nerve-wracking. Durable tire levers are required.