Video rides with data on screen

I’ve seen multiple videos on YouTube that shows camera on front of bike and data such as watts, rpm and heart rate show up as well. How do you make these videos? They would be nice to review a ride or race. How do they get data to show up on video?

Any advice? Thank you

A post was merged into an existing topic: Action Cam Data Overlay - what is the best setup for creating race recap vids?