National Geographic : 1970 Jun
Polyglas tires You'll see why many 1970 cars. Polyglas tires fight squirm for long mileage. That's one of the reasons why the Goodyear Custom Power Cushion Polyglas tire is stand ard or optional equipment on many 1970 car models. When a tire rolls, the tread grooves tend to squeeze together as they meet the ground, and open up as they leave. So the tread squirms scrubbing itself away against the pavement. A conventional two-ply tire has no way to resist this squirming, but a Goodyear Polyglas tire has two tough fiberglass belts underneath the tread to reinforce it. The belts act like hoops around the tire and hold the tread firm to help fight squirm and give you better tread mileage. Less squirm means a better grip. When tread grooves stay open, the tread grips better. Especially in the wet. So you'll feel the difference when you brake and corner. In a specific test on a wet macadam road, the Custom Power Cushion Polyglas tire was tested against our conventional two-ply Power Cushion tire, on two identical cars. Then we braked both cars from 45 mph to 0 mph. The Polyglas tires cut 32ft. off the stopping distance. 51 million test miles. Polyglas tires have run 40 million test miles on our Texas Proving Grounds alone - and an- other 11 million on laboratory test wheels. Since 1967, when we started selling Polyglas tires, they've run billions of miles on automobiles all over America. Like more facts? A booklet about the testing of the Goodyear Custom Power Cushion Polyglas tire is avail able. Just write to Goodyear, Dept. 805V, Akron, Ohio 44316. "Polyglas" US. Reg.#859,703 GOOD YEAR Polyglas. Custom Power Cushion. Power Cushion -T s TheGoodyear ire& RubberCompany,Akron,Ohio Polyglas is a registered Goodyear trademark. Only Goodyear makes Polyglas tires.