Well spaced paddle like knobs in the center and large siped corner power through any terrain Well spaced paddle like knobs in the center and large siped corner power through any terrain TR - Tubeless Ready - sealant required DC - Dual Compound tread provides a lower rolling resistance center paired with extra grip for the corners WT - Wide Track casing optimized for rims over 35mm internal width EXO equipped models feature Maxxis` EXO sidewall protection which help prevent puncture from sidewall abrasions