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Tire uniformity refers to the dynamic mechanical properties of pneumatic tires as strictly defined by a set of measurement standards and test conditions accepted by global tire and car makers. These standards include the parameters of radial force variation, lateral force variation, conicity, ply steer, radial run-out, lateral run-out, and ...
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. The UTQG was created by the National Highway Traffic Safety Administration in 1978, a branch of the United States Department of Transportation (DOT). [ 1 ]
In the United States, the Office of Vehicle Safety Compliance, a component of the Department of Transportation, is one of the agencies tasked to enforce the Federal Motor Vehicle Safety Standard (FMVSS). [3] Canada has published tire regulations, such as the Motor Vehicle Tire Safety Regulations SOR 95-148. [4] Metric tire code example
Radial force variation or road force variation [1] (RFV) is a property of a tire that affects steering, traction, braking and load support.High values of RFV for a given tire reflect a high level of manufacturing variations in the tire structure that will impart ride disturbances into the vehicle in the vertical direction.
ETRTO sizes apply to rims and tyres for vehicles of all types, including bicycles. The great advantage of ETRTO sizing is that it is unambiguous; previously, nominal dimensions were used which were interpreted in different ways by different countries and manufacturers - a problem for the end user.
For passenger car, light truck and truck tyres the information must be available in technical promotional literature (leaflets, brochures, etc.), including the manufacturer website. For passenger and light truck tyres, the manufacturers or importers have the choice of either putting a sticker on the tyre tread or a label accompanying each ...
FMVSS No. 119: [21] New pneumatic tires for vehicles other than passenger cars; FMVSS No. 120: [22] Tire selection and rims for motor vehicles other than passenger cars; FMVSS No. 121: [23] Air brake systems; FMVSS No. 122: [24] [25] Motorcycle brake systems; FMVSS No. 123: [26] Motorcycle controls and displays; FMVSS No. 124: [27] Accelerator ...
The following outline is provided as an overview of and topical guide to tires: Tire (North American) or tyre (British) – ring-shaped covering that fits around a wheel rim to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground.