Ramped center knobs form a nearly uninterrupted centerline that decreases rolling resistance while its round tire profile is packed with short, tightly-spaced knobs to provide predictable cornering traction on hardpack terrainLight - Lighter weight compound conforms to trail objects while still providing a happy balance between low rotational weight and reliabilityFR - Fast Rolling, with WTB`s Dual DNA rubber compound that optimizes efficiency, traction and durability, A firm, long-wearing centerline tread with softer side knobsTCS - WTB`s Tubeless Compatible System, sealant based tubeless system with improved bead shape Tubeless700x36622TBLS - FoldBk/Tan60LIGHT/FR/TCSNoUPC/EAN/GTIN: 714401109414