Uniform Tire Quality Grading Standards

A uniform standard to grade the quality of tires with regards to tread quality, tire traction and temperature characteristics. Ratings are determined by tire manufacturers using U.S.

government testing procedures. The ratings are molded into the sidewall of the tire.

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    Capacities
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    Loading a trailer
    - When loading the trailer, make sure that neither the permissible gross weight of the trailer nor the gross vehicle weight are exceeded. The permissible gross vehicle weight is indicated on t ...

    Removing a wheel
    Unscrew the uppermost wheel bolt completely. Screw alignment bolt 1 into the thread instead of the wheel bolt. Unscrew the remaining wheel bolts fully. Do not place wheel bolts in sand ...