Inner tube DUNLOP 2.75, 3.00, 70/100, 90/100 R21 Thickness 2.5mm, straight valve

DUNLOP - patented the idea and began to develop invention into a commercial enterprise, which quickly became known as "Dunlop Pneumatic Tire Co. Ltd." In 1890, opened the first tire factory in Dublin, Ireland, and three years later in Germany.