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Cog Display


This app calculates the gear ratio that you are currently using based on your cadence and your speed. Since it is impossible to determine what chain ring you are using, the app will display all the estimated cogs. For instance if you have a double chain ring 34/50, it will display the estimated cog for the 34 chain ring on the left and the estimated cog for the 50 chain ring on the right. It wo...

What’s New

Bug fix (1.0.4): On Edge 520, the display was very small. I believe it is now fixed with this version, but it is hard for me to test it since this bug does not appear in the Garmin simulator.

Additional Information

  • Edge® 1000 Edge® 1000
  • Edge® 520 Edge® 520
  • Edge® 820 Edge® 820
  • Edge® Explore 1000 Edge® Explore 1000
  • Edge® Explore 820 Edge® Explore 820
Average Rating: (3 Ratings)

17 February 2017 | Version 1.0.3

Genius! Accurate and responds very quickly to gear change.

15 February 2017 | Version 1.0.3

Very interesting this app, I'm using the Edge 1000, with cadence and velocity sensors and with a speed setting: two 24/34 chain rings and a cassette 11 speeds 10/42. I noticed that the indication for the current ring used is very constant, and the indication of the unused one is constantly changing, so it would not be possible to indicate the chain ring actually used? Another suggestion would be the option to indicate by continuous numbering (1,2,3 ...) the cog used, with 1 for the larger gear of the cassette. Congrats on the job!

Developer Reply
16 February 2017, Clement_Barthes

Hi Mazinhobender. You are correct, in many configurations the correlation is very accurate for one chain ring and not for the other, so it would be possible to guess. But at times, especially in mid-range, the correlations are too close to be guessed. I do not know how to translate that on the interface, maybe gray out the value when the correlation is poor? Your second suggestion would be much easier to implement, I could let people choose in the config. menu. But first I'd like to fix this small display bug that occurs on the edge 520. Any problem with that on your edge 1000?

12 February 2017 | Version 1.0.3

I like this a lot, and I like that it updates very quickly after I shift as well. I use it in a small half field, and my only complaint is that the numbers are very small and difficult for my old eyes to read. Please make the numbers closer to the standard Garmin sizes please. Thanks for making this available!

Developer Reply
13 February 2017, Clement_Barthes

Hi Joebiking, You might have downloaded the very first version. Can you try to delete the app and redownload it? Also, could you tell me what unit you are using? I only have an 820 so I can't test it on other devices.

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