Calculate your K-Value ??

Example

K = 10 x number of revolutions of the odometer cable / tire circumference in cm.

You can determine the number of revolutions of the odometer cable in this way: separate the odometer cable from the odometer. Put a paper clip on the square inner cable and turn the wheel exactly 10 times (briefly note on the tire).

Meanwhile, count the number of revolutions the paper clip / odometer cable makes.
For example: 10 x 27.5 revolutions / 202 cm = 275/202 = 1.36 is rounded 1.4