Whitewall tire; snow tires
Whitewall tires are tires that have a stripe of white rubber on the outer sidewalls. The early tires were made with rubber that is naturally white. However, the white rubber did not offer sufficient traction and endurance so carbon black was added to the rubber used for the treads. This resulted in tires with both sidewalls of white rubber. Next came the tires built with all black rubber and white rubber was added to make the whitewalls. The original whitewalls featured an entirely white sidewall. Modern whitewall tires often have a thin white stripe, or white raised lettering identifying the tire manufacturer and tire model.
Such tires were made with a full strip of white rubber under the black. The raised white letters were revealed by buffing the cured tire sidewall.
The black covering strip was made of Neoprene (polychloroprene) to avoid staining.
Classic vehicles have usually been optioned with wide whitewalls - it was popular during the pre and post-war era, only to resurface in the 1970s as a limousine trademark and within the pimpmobile culture. Although wide whitewalls are rare on modern automobiles, they are still manufactured by specialty outlets and/or classic car restoration companies such as Diamond Back Classics, Coker Tire and Vogue Tyre Company. Some companies manufacture wide whitewall inserts - the Portawall inserts are usually sold through VW Beetle restoration companies. (Port-A-Walls should not be used with radial tires due to the flexing of the sidewall that creates friction and rubbing between the port-a-wall and the tire )
Wide Whitewalls were popular on classic cars produced 1961 and earlier, lowrider and Cadillacs. Beginning with the 1962 Chevrolet Impala SS the whitewalls were reduced to 1″ wide with black between the rim and the whitewall. Modern trends toward more minimal styling, and large rims favoring low-profile tires leave little room for a whitewall. With the introduction of the new “retro”-styled Ford Thunderbird, Chrysler PT Cruiser, and Chevrolet HHR, wide whitewalls are again becoming popular. They are also an avalibale factory option on the Lincoln Town Car.
Other cars with whitewall tires:
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