Elevation and Slope errors

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Barry Zalph

• January 05, 2024 02:17

I rode a familiar ride today using the Karoo 2 mainly to track my heart rate. In a 17 mile ride with three climbs totaling about 500 feet, it told me that I had climbed over 6800 feet! It gave my maximum grade as 75.8% and minimum grade as -62.6%, which would challenge a mountain goat. In the several months that I have had the Karoo 2, it has always given reasonable climb metrics before, including on this route. This is 100% paved, with no more than reasonable urban road roughness. The temperature was about 36F = 2C throughout the ride. I checked and have the most recent software installed.

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  Steve Tenhouse

  • January 07, 2024 19:13

  Erroneous elevation readings, unfortunately, have been a known issue for quite a while.

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  Guido Del Giudice

  • January 08, 2024 04:11

  ride the same route with the Karoo in your back pocket and I am sure your results will be very different...vibrations at the mount are what cause these errors...I have experimented with 2 units and am pretty convinced

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  Anna Ronkainen

  • January 08, 2024 14:40

  There are probably different types of errors. Some might be caused by vibrations, but if you see big spikes in the altitude profile (the max/min grade figures would certainly point that way), it is this persistent thing that for whatever reason affects some locations but not others. My Karoo 2 works reasonably normally in Finland (except on this one road...) but goes completely nuts in Germany, unless I turn the mobile data off.

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