Aravis
Putrid Donut
- Location
- Gloucester
There's been endless discussion on this site and elsewhere on why the recording of elevation data varies so much. An area where there is work to be done.
Recording distance is the bread and butter task for cycle GPS, and it would be concerning if different units produced markedly different results. Is a difference of 0.2 miles in 50 tolerable? Perhaps. It's certainly proportionately more than I've seen since I've been running an Edge 200 and a 520 in parallel. The biggest difference was in my most recent ride - see below.
However, assuming the actual figure (if such a thing exists) for the OP's ride was indeed just over 50 miles, it hard to believe this would be measured more accurately by a wheel revolution counter, where it's impossible to be certain that the calibration is 100% accurate.
The data for my most recent ride is as follows:
Garmin Edge 200: 109.87 miles
Garmin Edge 520: 109.69 miles
BikeHike: 109.79 miles
RwGPS: 109.9 miles
That is formidable consistency. If a wheel counter produced a result of 110.5 miles, would you assume that the answers above were all wrong?
Recording distance is the bread and butter task for cycle GPS, and it would be concerning if different units produced markedly different results. Is a difference of 0.2 miles in 50 tolerable? Perhaps. It's certainly proportionately more than I've seen since I've been running an Edge 200 and a 520 in parallel. The biggest difference was in my most recent ride - see below.
However, assuming the actual figure (if such a thing exists) for the OP's ride was indeed just over 50 miles, it hard to believe this would be measured more accurately by a wheel revolution counter, where it's impossible to be certain that the calibration is 100% accurate.
The data for my most recent ride is as follows:
Garmin Edge 200: 109.87 miles
Garmin Edge 520: 109.69 miles
BikeHike: 109.79 miles
RwGPS: 109.9 miles
That is formidable consistency. If a wheel counter produced a result of 110.5 miles, would you assume that the answers above were all wrong?
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