I was looking for a lightweight but durable tire to ride at Leadville this year. I tried Rocket Ron. Maybe it's because I weigh 210 pounds or maybe it's because I got some dud tires, but each of the four Rocket Rons I tried flatted -- they flatted early and often. I was running Stans, etc., but it hardly helped. I was tearing the sidewall. Not sure what the deal is. I've since gone to Maxxis. Guess what? No flats! Therefore, unfortunately, I have to pan the Rocket Ron.