The present invention is directed to a pneumatic tire having at least one component, the at least component including a rubber composition, the rubber composition including a diene based elastomer and 10 to 100 parts by weight, per 100 parts by weight of elastomer, of a nanozeolite having a particle size of less than 1000 nm and a negative coefficient of thermal expansion over at least part of the temperature range of 0.degree. C. to 200.degree. C.