National Geographic : 1970 Jun
Buy Goodyear for mileage. they're on so This is squirm at high speed. We ran this conventional two-ply The Polyglas tire fights squirm. Look how this Polyglas tire tire in our laboratories at exaggerated speeds (under rated con- stands up under the exact same speed and conditions as the ditions) so you can see how bad tread squirm can get. Notice two-ply tire.That's how much difference the fiberglass belts on how the tread surface of this two-ply tire is badly distorted. the Polyglas tires can make in increasing mileage and improv ing traction.