In the majority of situations, the drive-by noise generated by the tyres on a car is louder than any aerodynamic noise from motion or noise created by the car’s powertrain. Drive-by noise is caused by air vibrating in the tyre’s interior, which generates tyre cavity resonance and, accordingly, noise levels. To minimise these vibrations in the tyre interior, Falken’s engineers have developed an innovative polyurethane foam layer that lines the tyre interior and slashes drive-by noise generation by up to 10 decibels. The foam lining is featherlight and does not impair tyre performance in any way. It is extremely durable and lasts for the entire life of the tyre.