Continental 0115715 Explorer 2.1 26 x 2.1 MTB Tire is an exceptionally successful all around model with neutral handling characteristics and super rolling comfort. The effective EndlessEdge tread works very well in loose and muddy terrain and is combined with various carcasses, resulting in numerous versions. An absolute highlight of the Explorer Supersonic. With 460 grams, a true cross-country and marathon tire. Specs: Weight - 620 grams; Recommended PSI - 50; Maximum PSI - 65; PU - 5.