how to check gear ratio by spinning the tire


Check Gear Ratio by Spinning the Tire

Are you looking to check the gear ratio of your car’s tires? If so, you’ve come to the right place! In this article, we’ll walk you through the steps of checking the gear ratio by spinning the tire.


  1. Secure the vehicle – Make sure the vehicle is securely placed in a level area and turned off before beginning.
  2. Remove the wheel – Remove the wheel from the vehicle using a wheel wrench.
  3. Identify the gear tooth count – There should be a number of gear teeth on the tire. Identify the number and count the teeth.
  4. Spin the wheel – Once the gear tooth count has been established, spin the wheel and count the number of rotations it takes for the wheel to make one complete revolution.
  5. Calculate the final gear ratio – The gear ratio can be calculated by dividing the number of gear teeth by the number of rotations the wheel takes to make one complete revolution.


  • It’s best to use a rope or string to spin the wheel instead of your hand, as it can be dangerous to spin the wheel quickly with you hand.
  • It’s a good idea to double check the count of the gear teeth by counting them twice.
  • Make sure the wheel is properly secured to the vehicle before turning it on.

By following these steps, you’ll be able to accurately check the gear ratio of your car’s tires. Good luck!