Maxxis shorty high roller ii mtb tyre combothe maxxis shorty high roller ii tyre combo is a highly reliable tyre set up for aggressive all mountain and downhill riding the shorty is a mid spike tyre that can handle dry loose terrain as well as a bit of mud widely spaced knobs clear debris efficiently while their square shape provides plenty of braking bite the open and aggressive tread design of the high roller ii also provides excellent soil penetration and mud clearing ability for outs