KEN NEVEGAL X SPORT 26x2.1 BK/BK DTC/60 WIRE 50psiSiped 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)