A free program for Android, by ABT.
The Gear Ratio Calculator is an app that calculates gear ratios for the road bike and the MTB.
It is a free tool that allows you to choose a replacement part and see how it affects the gear ratio.
You can create a graph with a combination of 22 types of chain wheels, 39 types of sprockets, and 70 types of tires.
You can set the speed (km/h, mph, m/s) and cadence (rpm) values on the vertical and horizontal axes, respectively.
The result will be displayed on the graph.
The application helps you to choose a replacement part that will satisfy your needs.
