Something strange happening with the Garmin Edge 510

Garmin’s route planner predicted a 22.17 mile ride. Strava reports a ride distance of 22.4 miles. The Garmin Edge reports 20.48 miles, ┬ánearly 10% down! The plot above shows the recorded speed versus time according to Strava. The plot on Garmin Connect looks a lot smoother. ┬áI didn’t notice the speed reading flickering this time. […]