Smooth rounded tread with large water dispersion grooves provide greater straight-line speed, traction and cornering confidence Excellent commuter or recumbent tireSRC - Standard Rubber Compound, combines the best attributes of low rolling resistance, extreme durability and tread longevityStandard20x1-1/8451WireBk/Bsk10033560SRCNoUPC/EAN/GTIN: 047853761528