After more than three years of engineering, Goodrich’s tubeless tyre effectively eliminated the inner tube, trapping the pressurised air within the tire walls themselves. By reinforcing those walls, the company claimed, they were able to combine the puncture-sealing features of inner tubes with an improved ease of riding, high resistance to bruising and superior retention of air pressure.  Testing proved successful, and in 1952, Goodrich won patents for the tyre’s various features.  By 1955 tubeless tires became standard equipment on new cars.