The DHF incorporates ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges, giving straight-line control and precise corneringTR - Tubeless Ready - sealant requiredDD - Double Down construction features two full 120 TPI casing layers reinforced with a butyl insertWT - Wide Track casing optimized for rims over 35mm internal widthTERRA - 3C Maxx Terra is softer and offers more traction than 3C Maxx Speed, yet provides better treadwear and less rolling resistance than Maxx GripTubeless29x2.5622TBLS - FoldBk/Blk65120TERRA/DD/TR/WTNoUPC/EAN/GTIN: 4717784033266