bike with pneumatic tires
Date: 1887
In 1887, Irish veterinary surgeon John Boyd Dunlop fitted a piece of rubber hose to his son’s tricycle and inflated the new tires with air. The superior suspension this pneumatic tire provided over solid tires led Dunlop and others to develop the idea. Bicycles with pneumatic tires were being offered by 1891, and by 1893 pneumatic tires were standard equipment. Tire sizes were commonly 30 x 1.5″ and 28 x 1.5″. No doubt, bikes with these tires were ridden on dirt, as there were few paved roads.
