After having some serious issues with my Garmin 800 this week, and some help from some nice people on the Garmin forums, I went out to check it was running ok again.
Wasn't paying much attention to the average speed, just following the course, seems I may have to do that more often!
Although Strava took away half a bleedin second from Garmin + Endomondo + MapMyRide who all came in between 16.3 and 16.1 mph. Strava Speed Tax sucks.
https://app.strava.com/activities/309633120
Yes I agree
I have had some problems with synching the Garmin,
Garmin Express wouldn't do it automatically
If I went in and told it to do updates, it woul then sync, but always said it had failed. The ride however was uploaded to Garmin Connect, and thence to Strava.
Garmin Support suggested deleting possibly corrupt items from aparticular folder, which I did with no success,
I eventually tracked problem to a course I had in Garmin Connect - presumably corrrupt - deleted and all is now back to normal.
I had changed heart rate zones and now able to update them (you can't do this on the Garmin 500 itself)
Yes I was riding home and Ave speed was 18.1 mph all the way, just dipped down to 18.0 at the end.
Yes Strava insists it was 17.9. Garmin Connect gives moving speed of 18.1 which is probably correct.
Strava/Garmin combo also robs of climbing altitude.
Recent ride was Planned as 3000 feet climbing - on Strava
Ride came in at 2700 feet. I put it down in spreadsheet as 3000, but Veloviewer obviously takes the Strava figure.
I know Strava can correct climbing , but I found this was always downwards!