Dual tread compound bmx tire designed for street use Freestyle inspired micro-knurled tread extends onto the shoulders for improved traction DTC - Dual Tread Compound is a combination of two different rubber compounds, L3R Pro (center knobs) and Stick-E rubber (corner knobs) Standard 20x2.1 406 Wire Bk/Blk 100 698 60 DTC NoUPC/EAN/GTIN: 047853645545