Input your tire size, sprocket and chainring teeth and get your:
* Ratio
* Number of skid patches (also ambidextrous)
* Development
* Get your speed at a certain cadence
* Get the needed cadence for a certain speed
* Switch between metric and imperial
Currently tire sizes are from 622-20 to 622-56.
Sprocket teeth from 9 to 23
Chainring teeth from 29 to 59
Let me know if your desired gear is missing ^_^