Two tires in one - fast rolling center section paired with aggressive outer edges for cornering control A universal design that is applicable to a wide variety of riding styles and conditions Knobs designed for seamless transitions from center to edge DTC - Dual Tread Compound is a combination of two different rubber compounds, L3R Pro (center knobs) and Stick-E rubber (corner knobs) REF - Reflective sidewall striping or hotpatch to aid in low light visibility Standard 700x40 622 Fold Bk/Blk 85 469 120 DTC/REF YesUPC/EAN/GTIN: 047853629163