Getting same issues with distance data on my Bolt paired to my 2018 Levo. Great to have the Mode and Battery status displayed natively now, but with the distance being so far out it makes it next to useless. Did a geek test and logged a 12 odd mile ride with the Bolt, Endomondo on my Android phone and my Fitbit Charge 2 watch. All three devices have their own GPS receiver. Endo and Fitbit logged distances within a few tenths of a mile of each other, the Bolt logged around 9.5 miles. Downloaded the file from each device (had to convert the Bolt file to .tcx) and compared the XML of all three. All three were very close right through the ride, finishing within a few hundred meters at the end of the ride.
By the way, I strapped the Bolt onto my Scott Genius LT (non-electric) and did a similar test, the distance was very close across the board.
So obviously the Bolt is taking incorrect distance data from the Levo. I've bought the Blevo app and reset the speed limiter to standard (had been changed before I bought the bike second hand), so wheel diameter is correct but distance was still wildly inaccurate, and I've disconnected Strava from the Levo (MC) and Element. All I want the Bolt to do is to display and log the GPS signal that it's obviously receiving. Contacted Wahoo support and they came back to say that it takes data from an external sensor if one is available and you can't override that behaviour.
Now to me, this seems ludicrous. Why would you have a GPS computer, which connects and receives data perfectly, but ignore that for another sensor. Even if you would want to do that, why on earth would you not be able to manually override and tell it to use the perfectly good GPS data?
Don't understand. Was really pumped with the Bolt and the fact that Wahoo are actively developing the firmware, but now I feel I've made an expensive mistake.
Would love to hear other's thoughts on this.
(BTW, I believe things are better if you strap a speed sensor to the hub? Again, why on earth...)