Tire and Wheel Radial and Lateral Run-Out, Checking

Tire and Wheel Radial and Lateral Run-Out, Checking

Radial and lateral run-out occur when the wheel and tire are not running precisely true.

For technical reasons, 100% true running is not possible.

Therefore the manufacturers of these components allow a precisely specified tolerance.

Mounting the tire in a unfavorable position on the wheel can be the cause for exceeding the maximum allowed tolerance for wheel with tire.

The table shows the maximum permissible tolerance values for the wheel with mounted tire.

Tolerances For Radial And Lateral Run-Out Of Disc Wheel With Tire






Checking Lateral Run-Out

- Load the tire dial gauge approximately 2 mm.

- Set up tire dial gauge on the side wall of the tire.






- Rotate the wheel slowly.

- Note the smallest and the largest dial readings.

• If the difference is greater than 1.3 mm, the lateral run-out is too great.

In this case, lateral run-out can be reduced by matched mounting of the tire => [ Wheels and Tires, Matching ] Wheels and Tires, Matching.

Peak values on the tire dial gauge due to small irregularities in the rubber may be disregarded.

Checking Radial Run-Out

- Load the tire dial gauge approximately 2 mm.

- Set up tire dial gauge on the tread of the tire.






- Rotate the wheel slowly.

- Note the smallest and the largest dial readings.

• If the difference is greater than 1 mm, the radial run-out is too great.

In this case, radial run-out can be reduced by matched mounting of the tire => [ Wheels and Tires, Matching ] Wheels and Tires, Matching.