Directional tread profile for quiet running and low rolling resistance Equipped with K-Guard, Schwalbe`s entry level puncture protection Green compound is made from renewable and recycled materials Twin Skin - An additional rubber coating on the side protects against cuts and allows for uniform coloring GRN - A rubber compound made of renewable and recycled raw materials Standard 24x1.75 507 Wire Belted Bk/Bsk 65 50 KGRD/GRN NoUPC/EAN/GTIN: 4026495812085