These tires wear very well. I've ridden them for over 4,000 miles and they haven't started to wear out much, they're more durable than the Ultra Sport II. I took them off the aero frame, they sit fine in static, yesterday I noticed for some reason a century-long ride that the front end barely rubbed the underside of the V-brake. I don't know why I didn't notice this earlier with my frame. Guess it wasn't enough to slow me down LOL Oh I used 28mil tires. Another reason I took them off is because they are tight, tighter than any other Chinese continental tires I've used. It's nice to fight a hoop in daylight, but when it's pitch black and your jaw gets tired of holding a flashlight in your mouth and then you're pinching your whistle because you can't see the whistle, it gets really annoying . I went back to my Ultra Sport II tires which are much easier to fit. Maybe a professional bike mechanic :) has no problem installing them, but this non-professional bike mechanic with 50 years of experience has problems with these tires, and only with these tires. If you use 23/25 they might be easier to install, I know the 28's were a bear.
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