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UTQG ratings on sidewall of Toyo Tires Proxes R39 tire UTQG ratings (top) and tire code (bottom) on sidewall of Continental ContiProContact tire. Uniform Tire Quality Grading, commonly abbreviated as UTQG, is a set of standards for passenger car tires that measures a tire's treadwear, temperature resistance and traction.
Tires with a smooth tread (i.e., having no tread pattern) are known as slicks and are generally used for racing only, since they are quite dangerous if the road surface is wet. Street tires will also include wear limit indicators in the form of small raised bridges within the grooves.
TWI: Tread wear indicator – a device, such as a triangle or a small Michelin Man icon, located where the tread meets the sidewall, and indicating the location of the raised wear bars in the tire tread channels – TWI is also used to refer to the raised wear bars themselves. VSB: Vertical serrated band; WSW: White sidewall
Uneven Tread Wear on Tires If you spot this red flag, it could signal a hidden issue related to alignment. Douglas said this could lead to costly consequences later on.
Some grooveless designs have small "holes" or dimples embedded in the tread as a tyre-wear indicator. This is similar to automobile tyre-wear indicator bars, which contact the road when the tyre is worn to a low tread amount, making the tyre noisy on the road.
Tire manufacturers and car companies have mutually established standards for tread wear testing that include measurement parameters for tread loss profile, lug count, and heel-toe wear. [26] Wear bar and tread wear indicator on the snow tire tread Tread wear indicators (T.W.I.) Raised bars in the tread channels, which indicate that the tread is ...
Tread worn away completely: especially when the wear on the outer rubber exposes the reinforcing threads within, the tire is said to be bald and must be replaced as soon as possible. Sometimes tires with worn tread are recapped, i.e. a new layer of rubber with grooves is bonded onto the outer perimeter of a worn tire. Since this bonding may ...
WASHINGTON (Reuters) -The FBI has been investigating a longtime Exxon Mobil consultant over the contractor's alleged role in a hack-and-leak operation that targeted hundreds of the oil company’s ...
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