When you want one tire to work well in every situation, eliminating the worry and second-guessing that comes with trying to match substrate to tread design, compound, and casing, the Scwalbe Nobby Nic Evo Tubeless Easy is your choice. This all-around performer with a penchant for big rocks and loose gravel has been updated with a new tread design, Tubeless Easy (TL Easy) technology, and SnakeSkin sidewalls.Weights:2.25 DD PSC - xxx grams2.25 SS PSC - 672 grams2.35 SS PSC - 683 grams2.35 SS TSC - 756 gramsActual WidthCasing:2.25 = 2.07", 2.35 = 2.18"Tread: 2.25 = 2.09", 2.35 = 2.18"PaceStar Triple Compound tread - fast rolling with good grip and no squirminessTrailStar Triple Compound tread - excellent grip with low rolling resistanceEVO carcass casing lays the threads more perpedicular to each other for a smooth rideSquare tread blocksVersatile tread pattern emphasizing traction and cornering controlTubeless Ready (TR) - Sealant seals tire, will not hold air without sealantAvailable with Schwalbe's Snakeskin (SS) sidewall protection or Double Defense (DD)UST version has butyl insert from bead to beadDoes well on all trail conditions - Not as fast as Racing Ralph on hardpack