Siped and staggered center tread paired with larger more aggressive shoulder knobs give this tire unparalleled bite and traction The Nevegal X features slightly lower shoulder lugs and more aggressive center line than the original for a more well rounded, smoother rolling tire DTC - Dual Tread Compound is a combination of two different rubber compounds, L3R Pro (center knobs) and Stick-E rubber (corner knobs) Standard 29x2.2 622 Wire Bk/Bsk 50 870 60 DTC NoUPC/EAN/GTIN: 047853646276