Over a 1200km with a pair of Schwalbe duranos 1.1 on a 24 years old 26 inch steel ATB, so far not a single flat. The other bike is tange 26 inch 94' Scott with similar slicks - Conti GP 4000 1,1 - over 700km so far, no flats, feels maybe a bit faster than duranos. If I need a more comfort ride, a pair of 1,6 slicks is better.
