Smooth fast rolling center with gravel oppressing micro knobbed shouldersDTC - Dual Tread Compound is a combination of two different rubber compounds, L3R Pro (center knobs) and Stick-E rubber (corner knobs)TLR/TR - Tubeless (Light) Race is the lightest tubeless ready version of tires Kenda offers and also features an improved bead shape for better retentionTubeless27.5x45584TBLS - FoldBk/Blk5012060a/50aDTC/TRYesUPC/EAN/GTIN: 047853664102