This calculator provides a theoretical starting point for fork spring rate selection, developed using Vorsprung Suspension Smashpot V2 data as a reference baseline — this is our own interpretation and extension of that work. Results should be used as a starting point and adjusted based on personal preference, riding conditions, and fork manufacturer guidelines.

This calculator provides a theoretical suitable spring rate but does not guarantee perfect results. Spring rate calculation involves many variables, such as riding style, bike weight, frame or suspension design, and personal preference. Results should be considered as educated starting points and not guarantees.