This is level of bike control, and drone control for that matter, is absolutely mind blowing. Take a watch as this racing drone chases pro mountain biker Rémy Métailler down the most insane trails in British Columbia, Canada. Filmed by Raphaël Boudreault-Simard of Flow Motion Aerials, this just shows how much drones have opened up opportunities to film in just about every condition, and for multiple use cases. It used to be that you would have a camera on a guide wire, or maybe even use a Helicopter for aerial shots. As you can see those days are few and far between now with drones being available at the hobbyist level, going all the way up to pro level for film production, or using a racing drone like you see being used here.
Source: Rémy Métailler