S2C – Speed to Cadence (Fixed Gear / Single-speed)

This app computes the cadence from the speed data measured by your Edge bike computer and displays it on the device. First you have to configure your chainring size and cog size in teeth, and your wheel circumference in mm – see for example https://www.sheldonbrown.com/cyclecomp_f.html – this obviously works best on a fixed gear or single-speed bicycle – unless you want to change the configuration every time you switch gears. If you add the data field to your data screen, the cadence is displayed in revolutions per minute (rpm) on the display. It's also possible to automatically to switch between speed and cadence display every (configurable in the settings) number of seconds.