Originally Posted by
cyccommute
The Nano Comps don't look like they are very road friendly. Looking at the tread, I'd call them a good off-pavement to moderately good single track tire. But they wouldn't be that good on-road, especially if you are doing a lot of miles before you hit the off-pavement part. All you'll do is speed a lot of energy wearing down the knobs and making them useless by the time you reach the "off-pavement" part. Use a smoother tire for the on-road part and switch tires to a more aggressive off-pavement tire once you get here. I'm not trying to talk you out of going off-pavement (different from "off-road") in Colorado but don't waste energy when you don't need to.
....
There should be some tires out there that are reasonably good for both. I have used the (now discontiued) Schwalbe Marathon Extreme for off road and on road riding. Noisy on road, but rolled almost as efficiently as some of my road tires. And I had good grip off road.
The tire in the photo is 57mm wide. Sorry I don't have a better photo.