10+ Dirt Bike Spring Rate Calculator. To calculate the spring rate you need to achieve a given sag, you can use the below equation. Use this spring rate estimator to gain an understanding of what spring rate your vintage or classic motorcycle needs.

We offer a wide range of. The spring rate is the amount of force required to compress the spring one inch, and is measured in pounds. You will need to make sure that you are setting the spring rate at the proper height for your.








