I put the 700 x 40 tires on my Stevens cyclocross bike. I did a 50 mile ride with a mix of canal banks, decrepit county roads, and some fairly good roads. These tires performed flawlessly on the pavement and on the dirt. These tires roll fast on pavement. My set up is tubeless and kept psi at 50 in back and 47 front. I have also run these on Bianchi road bike size 700 x 26 and they never felt slow on pavement. I have found Panaracer tires to be as good as the other more expensive and well-known tires.