Originally Posted by
Tpcorr
So I just got a Garmin Edge 520 and will be getting at least the cadence sensor. Other than preventing data loss from gps signal loss, is there any advantage to using the speed sensor over the gps for determining speed and distance?
thanks
Tom
You'll need it for some indoor trainers. I have a 510 without speed, the lag in realtime speed is never an issue for me. My wife got a new 520 bundle that included the speed sensor and she uses it with the trainer to ride Zwift - she's loving it. (for the record, I've stolen the speed and cadence sensors off her bike for some Zwift rides too).