Maxxis mammoth fat mtb tyre exothe maxxis mammoth exo tyre is its first venture into the world of fat bike tyres it features a low centre tread design to keep rolling resistance to a minimum while the large side knobs ensure maximum corning grip the mammoth provides exceptional speed and grip whether youre riding trails sand or snow and the exo protection provides excellent cut resistance for increased durability features conditions hardpack loose over hard medium cornering control