Ditto what BikeInMN said. The tire is super smooth and has held up well. I think a lot of people don't understand that many cyclists ride their trainers hard as hell. I'm not talking about thrashing around like in a sprint but grinding out hard intervals at high wattages/speeds. If you're just noodling and spinning easy you won't generate much heat and tires will last forever. But if you're doing intervals at 27-28 mph for over four minutes the heat generated will be high and tires will wear much faster.