Enter the rear wheel travel and the shock stroke into the calculator to determine the leverage ratio of a bike.

Bike Leverage Ratio Calculator

Enter any 2 values to calculate the missing variable


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Bike Leverage Ratio Formula

The following formula is used to calculate the leverage ratio for a given rear wheel travel and shock stroke.

LR = RWT / SS

Variables:

  • LR is the leverage ratio
  • RWT is the rear wheel travel in millimeters
  • SS is the shock stroke in millimeters

To calculate the leverage ratio, divide the rear wheel travel by the shock stroke.

What is a Bike Leverage Ratio?

The leverage ratio of a bike is a measure of how much the rear wheel travel is amplified by the shock stroke. It is an important factor in the design and performance of a bike’s suspension system. A higher leverage ratio means that the rear wheel travel is greater for a given shock stroke, which can result in a softer and more responsive suspension. Conversely, a lower leverage ratio means that the rear wheel travel is less for a given shock stroke, which can result in a firmer and more stable suspension. Understanding and optimizing the leverage ratio is crucial for achieving the desired balance between comfort, control, and performance in a bike’s suspension system.

How to Calculate Bike Leverage Ratio?

The following steps outline how to calculate the Bike Leverage Ratio.


  1. First, determine the rear wheel travel (RWT) in millimeters.
  2. Next, determine the shock stroke (SS) in millimeters.
  3. Finally, calculate the leverage ratio using the formula LR = RWT / SS.
  4. After inserting the values and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Rear Wheel Travel (RWT) = 150 mm

Shock Stroke (SS) = 50 mm