I have an older mtb which i use Continental 26x1.75 City Rides which i find great for about town and rail trails. I have Alex DM18 wheelset and tried a 1.5 tire (used on other bike now) but just didn't suit the oversized frame where the 1.75's look perfect on it. Over 3000km so far, no punctures and miniaml wear on them. For $30 ea....can't complain.