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The first three characters indicate the manufacturing plant and are assigned by the NHTSA [20] (tires made before 2015 had only two characters). Following the manufacturer's plant code, the next two digits within a DOT code signify the tire size. For instance, the size code "WC" might correspond to the tire size 205/55 R16.
The UTQG was created by the National Highway Traffic Safety Administration in 1978, a branch of the United States Department of Transportation (DOT). [1] All passenger car tires manufactured for sale in the United States since March 31, 1979 are federally mandated to have the UTQG ratings on their sidewall as part of the DOT approval process ...
Titan Tire Corporation [79] USA: 1993 Goodyear (farm tires), Titan, Continental (OTR only) [80] Tigar Tyres Serbia: 1959 Tigar: Tomket Tires [81] [non-primary source needed] Czech Republic: 1997 Tomket (Czech brand of low category is made in China) Toyo Tire & Rubber [82] Japan: 1945 Nitto, Silverstone, Toyo: Trayal Corporation Serbia: 1955 ...
DOT plant code [71] [72] Division and Product or activity [73] [74] Akron, Ohio, United States: MB/1MB: The Goodyear Tire & Rubber Co. - Global headquarters, North America headquarters, Goodyear Dunlop Tires North America headquarters, innovation center, racing tires, chemicals, tire proving grounds, airship operations Bayport, Texas, United States
The DOT Code is an alphanumeric character sequence molded into the sidewall of the tire and allows the identification of the tire and its age. The code is mandated by the U.S. Department of Transportation [105] but is used worldwide. [106] The DOT Code is also useful in identifying tires subject to product recall [107] or at end of life due to ...
Rolling resistance is the main key factor in measuring the energy efficiency of a tyre and has direct influence on the fuel consumption of a vehicle. A set of tyres of the green class "A" compared to a "G" class can reduce fuel consumption by 9% [3] of a passenger car; even more for trucks.
Goodyear registered the name in 1992 [1] through its subsidiary Kelly Springfield Tire Company. typical DOT code. The actual location [2] of manufacture of a Douglas tire can be determined through the first two characters following the "DOT" of the DOT code molded into the sidewall and consulting the NHTSA Manufacturers Information Database.
A cross-section of a tire. Number 12 indicates the radial ply. Numbers 14 and 16 are bias plies. A radial tire (more properly, a radial-ply tire) is a particular design of vehicular tire. In this design, the cord plies are arranged at 90 degrees to the direction of travel, or radially (from the center of the tire).