Maxxis high roller mtb tyre single ply our most popular and versatile mountain bike tire the high rollers ramped leading edges roll fast while the side lugs offer stability at speed and a sharp edge to hold corners the grooved center knobs provide straight line control the high rollers tread design translates well to all mountain bike disciplines including downhill cross country and freeride features ramped knob design hardpack loose over hardpack medium soil loose terrain lightwe