The DHF incorporates ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges, giving straight-line control and precise corneringEXO - sidewall protection which helps prevent puncture from sidewall abrasionsTR - Tubeless Ready - sealant requiredTERRA - 3C Maxx Terra is softer and offers more traction than 3C Maxx Speed, yet provides better treadwear and less rolling resistance than Maxx GripTubeless27.5x2.5584TBLS - FoldBk/Blk5060TERRA/EXO/TRNoUPC/EAN/GTIN: 4717784045368