Originally Posted by John_V

I believe the problem is Strava and not the Bolt. I've have been consistently getting portions of a mile dropped when sending my ride to Strava. I can do a 40.4 mile ride and send the file to Strava and Strava will display it as 39.9. I have also had it where Strava dropped an entire mile off my ride. I also send my rides to Endomondo and RWGPS and both those sites show exactly what I see on the Bolt. If I upload a file from a 40.6 mile ride, it displays properly. I'm thinking Strava needs to look into their FIT parsing engine because I don't think it's working right.