A smooth, fast rolling centerline transitions into small diamond shaped peaks and then more substantial shoulder knobs for traction under loadLight - 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 knobsSG - Extra layer defends most exposed areas of tire and improves air retention for high-pressure tiresTCS - WTB`s Tubeless Compatible System, sealant based tubeless system with improved bead shape DNA2 - Dual DNA is the perfect mix of efficiency, traction, and durability â firm centerline with softer shoulders and sidesTubeless27.35x1.85584TBLS - FoldBk/Tan60LIGHT/FR/SG/TCS/DNA2NoUPC/EAN/GTIN: 714401110892