Ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges, giving straight-line control and precise cornering 3C Maxx Grip technology Reversible directional tread EXO equipped models feature Maxxis` EXO sidewall protection which help prevent puncture from sidewall abrasions TR - Tubeless Ready - sealant required WT - Wide Track casing optimized for rims over 35mm internal width Tubeless 27.5x2.5 584 TBLS - Fold Bk/Blk 65 1320 60 EXO/TR/WT No