When I upload the fit file to strava after a zwift ride, the speed data looks strange. it resembles a saw, in that there are equally spaced drops or spikes within the data. I find this strange as the power output is consistent (using trainerroad while zwifting) and so is the cadence. Speed data line however shows as saw teeth.
Whats interesting is that the speed data looks like it was processed using digitalEPO http://www.scarletfire.co.uk/how-to-tell-if-someone-used-digital-epo-to-cheat-on-strava/
Has anyone experienced this before?