These are a good low profile tire that i recommend for street riding.. I put them on my Hardtail/commuter bike . They are very light, are a good 2.1" size and you can feel the difference from a knobby right away. They feel fast, and they lasted 2000 miles last year and are still holding up.
One draw back is braking in the rain.. I feel they don't stick as much or feel controlled on abrupt stops...