4 of 4 customers found this review helpful.
Generally I'm a big fan of Conti tires. And this is a solid product, better in my opinion (from trying both) than its competitor from a brand that starts with V. When new, this tire is amazingly smooth and provides outstanding traction on my Computrainer (old school, I know). In previous winters riding inside, this tire would last a whole season. But this past winter season, I've been sorely disappointed in the durability of this tire. The rubber compound would start to break down and flake off in tiny bits (similar to, but much smaller specks than seen if you try using normal road tires on a trainer) right on the crown of the tire, within the first 100 miles of use. Then over the next 100 miles, I could see small cracks forming across the center of the tread. By 400 miles, the tire was losing its shape due to the walls flaring out in a couple locations. By 700 miles, the tire failed and I got a flat. On my trainer. During an indoor ride. Two months of use was not what I expected from this tire.
Thinking I'd just gotten a lemon because I'd bought it from a different retailer in February, I bought this one from BTD in April, and I was very happy with it from the start. But I could see tiny cracks forming again at 100 miles or so of use. I'm about 700 miles into this one and the shape and smoothness of the tire is still great, so it's doing better than the one from February, and maybe it'll last much longer. But the widening cracks down the middle make me worry that its failure is imminent.
I don't know what's going on. Did the tire compound change from previous generations? Is my newfound zest for indoor training due to Zwift causing the rapid demise of my trainer tires? I always have a fan set up within 2 feet of the tire blowing directly on the trainer's roller to keep heat down on the tire. I'm a respectable rider, but my FTP is only 274 watts, so there are tens of thousands of riders just on Zwift who are pushing MUCH harder loads than me, potentially heating up tires more than I do. Are they using tires, or are they mostly using direct drives? Maybe it's the latter, and I'm probably gravitating in that direction, as having to buy a few of these tires a year would, over a few years, justify my purchase of a wheel-off, direct drive trainer.
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