Originally Posted by
bikepro
I exported the ride and viewed it in Google Earth -- it looks pretty much the same. It could be due to solar activity:
http://articles.cnn.com/2011-08-05/t...cle?_s=PM:TECH
However, I ride almost everyday with a Garmin Edge 500, and have noticed no problems. It's could be the MapMyRide application, but there's no way to know for sure.
I've experienced inconsistencies with the MapMyRide app on my iPhone.