Just feedbacking on this. I've got Continential Travel Contacts 26x1.75" . My bike computer registers (off memory now) ~7500km on it but I have about I think 500km of that with my IRC Methos 26x2.1".

The IRC Methos did give me pinch flats but that was because of ~8yrs of basement storage. Ever since I put my Travel Contacts on I've been riding since I joined BikeForums and ~7000km no flats using Continential (I think on the measurement range) 26x1.5-2.1" presta tubes that are found at www.mec.ca . I think I used the 'light' version for less weight.

I've purposely ran over glass, broken sharp curbs, potholes, and broken beer bottles (as I rolled over the bottle jagged edge I broke the rest of the half of the bottle with no tire leak or damage).

They arn't kidding when they said it's uber puncture resistant. I think the only way I'll puncture them is it I rolled over a holllow spike strip with break off spikes. The make up of the thread is semi-slick tho and while you'll get good smooth riding and low rolling resistance it's not really something to climb a grass hill with especially with someone behind you (trust me on this, ).

On road/asphalt/sidewalks/paved roads/hardpack it's good. BTW I don't work for Continential. Just love thier quality.