I've been using Conti GP tires since 2012 and have loved them ever since. The roll incrediby fast with some of the best in class rolling resistance ratings. Many folks just think of straight line speed, but these tires definitely improve climbing ability as well. They provide great cornering, giving you all the confidence you need to take those fast tight corners. I have tried a few others, but honestly, I went back to the Contis well before those "other brands" had completed their useful lifespan. Just dont waste time and money on other tires, go with these.
I have used this tires on various bikes for five years and never had a flat! They are fast, comfortable and have good cornering grip. In contrast I ran Victoria Corsa Pro's for only a short while one year and experienced multiple sidewall punctures. I live in Colorado, but travel with my bike and have ridden in California, Utah, Arizona, New Mexico, Florida, Virginia Pennsylvania and Vermont with the S TR's. I set up the tires to run tubeless.
So I'm an old guy (72) been riding and racing since I was a teen. So for quite a while anyway. These are the first TPU tubes I've ever run on my bikes. I like them, it's only been a couple months but they're lighter and I think maybe roll faster than butyl tubes. I've had no flats and no problems with the valve stems working with the stem extenders my wheels require. I'd recommend them.
I've been riding Conti's for about 10 years now; clinchers with tubes. I got occasional flats but, and it may be luck, haven't had a flat now for almost 3 years and 7K miles. It may be that going to wider tires (I'm now on 30's) and lower tire pressures (now at 60 & 65) result in fewer flats? Conti's have a reputation for being hard to mount. This was true on my 21mm internal alloy wheels. But, I am able to mount the 30's on Vision carbon wheels using only my hands. So, it seems the right combination of wheel and tire make a difference. I got about 3K on size 25mm but am getting more than that since upsizing. They roll nicely on the Vision wheels with Silca TPU tubes; low rolling resistance and reliable combo.
