Widely spaced medium sized triangular knobs offer a low rolling resistance while also providing superior grip on hard pack and loose loamy conditions Kenda`s DTC (Dual Tread Compound) technology allows you to maintain high speeds without sacrificing traction DTC - Dual Tread Compound is a combination of two different rubber compounds, L3R Pro (center knobs) and Stick-E rubber (corner knobs) Standard 27.5x2.2 584 Wire Bk/Bsk 50 822 60 DTC NoUPC/EAN/GTIN: 047853638394