The Conti XKing in width 2.4 in the Protection version leaves no wish unfulfilled. Used in cross-country / marathon he has a higher level than a comparable flu Schwalbe Rocket Ron, a wider border area and is extremely puncture-proof. For this purpose it rolls more easily. I drive him in connection with American Classic MTB wheels and tubeless. Even in muddy trails with roots and rocks of the grip is excellent.