This tire is everything that bicycle rolling resistance claims. It is light, extremely fast, supple and gets up to speed quickly. I easily gained 1-2 mph on the same stretch of roads that I ride. I deducted one star because of the poor puncture protection. With just 45 miles on the tire, I suffered a one inch cut in the tire and had sealant spray all over the the place. However, I believe that any road tire would have suffered the same cut. Overall, great tire for race day, but not good for training or group rides.
I have been riding on Pro 4 Endurance tires for at least the last 7 or 8 years. I weigh about 185 lbs yet have been able to get at least 2,500 to 3,000 miles on these tires and often a bit more. I ride about 2,500 to 3,000 miles per season and usually put a new set of tires on each year or so. I ride almost exclusively on paved roads and have had maybe 2 or 3 flats of flats over that time period of 7 to 8 years. The tires perform very well and are solid in the corners.
These might be the most comfortable tires Iï¿½ve ridden to date, I really like the way they eliminate road buzz but still offer plenty of feedback. They feel pretty fast as well, I ran them close to the max pressure (80/85 front/rear) and they never felt like they were holding me back. These mount fairly easily (not as easily as Zipp RT25s), and the beads stay locked in when deflated on my Easton wheels. I give them 4 stars because they lack an anti puncture belt and I did get a flat after about 400 miles, they also inflate larger than the listed size so if someone was looking for an aero benefit they would need very wide rims.
Only recently have I begun to use this tire brand more extensively, than the Continental Grand Prix I use to ride on my road bike. Main reason at first purchased new aero rims, and could not for the life of me install or even remotely take off the tire from the rim, even with the tire tool. Purchased these tires and install as I normally would. Find the rolling resistance and puncture resistance the same as the Grand Prix. Have about 500 miles on the tires with no issues. Also they come with a Red sidewall that matches my frame.