Learn how to use the original and most popular skid patches calculator for cyclists on the internet since 2009

The following instructions aim to assist you in effectively using our skid patches calculator, ensuring a more seamless and informed experience.

1. Count the number of teeth on the front cog of your bicycle, and select this value in the picker labeled chainrings teeth.
2. Do the same on your rear cog for the picker labeled sprockets teeth.
3. If you can skid with either foot forward, then turn on the switch labeled ambidextrous skids.

For more information about skid patches, please visit our article answering common questions from the community.