I have a Garmin Edge 305, and when I ride under underpasses/bridges the unit sometimes calculates speeds of up to 70mph. But if I look at the data I can see why it happens.
The GPS position becomes inaccurate and so the unit thinks i have travelled much further in one second, than I actually had. If I delete the GPS points that are inaccurate, the maximum speed returns to normal (but slightly more averaged)
It would be interesting to see that data . I assume you didnt upload it to http://connect.garmin.com
The GPS position becomes inaccurate and so the unit thinks i have travelled much further in one second, than I actually had. If I delete the GPS points that are inaccurate, the maximum speed returns to normal (but slightly more averaged)
It would be interesting to see that data . I assume you didnt upload it to http://connect.garmin.com