With its medium-height tread, the Ardent Race bridges the gap between the XC-oriented Ikon and the trail-oriented Ardent. Supple 120 TPI casing provides a fast rolling and forgiving side wall Tubeless ready 3C MaxxSpeed compound features two compounds in the outer layer that are specially formulated to reduce rolling resistance and optimize treadwear and traction EXO - Optional EXO compound improves sidewall puncture and abrasion resistance TR - Tubeless Ready - sealant required Tubeless 27.5x2.2 584 TBLS - Fold Bk/Bsk 60 680 120 3C/EXO/TR NoUPC/EAN/GTIN: 4717784026114