How accurate is the "my power" measurement on bosch gen 4 cx?

[Mteam]

When I'm pedalling along I have the Kiox display showing the "my power" measurement, and it shows some pretty high numbers, they seem implausibly high to me, but I've never used a power meter so I have no clue whether theyre accurate or not.

Does anyone know how accurate these figures really are?

 

[Gyre]

When I'm pedalling along I have the Kiox display showing the "my power" measurement, and it shows some pretty high numbers, they seem implausibly high to me, but I've never used a power meter so I have no clue whether theyre accurate or not.

Does anyone know how accurate these figures really are?

Found this thread when I was looking for ANT+ support from the Kiox so I can get power/speed/cadence on my cyclecomputer. I guess it doesn't support that. It's really annoying that I have to double up on sensors for no good reason.

Anyway, I have a pair of Favero Assiomas which are reputed to be extremely accurate. I'll put them on soon and share what I find.

Out of curiosity, does the Kiox have a way to upload playback data? DC Rainmaker is supposed to have a tool where you can compare data from different sensors on overlaid graphs. That would be even better than me verbalizing what I find.

 

[Mteam]

Found this thread when I was looking for ANT+ support from the Kiox so I can get power/speed/cadence on my cyclecomputer. I guess it doesn't support that. It's really annoying that I have to double up on sensors for no good reason.

Anyway, I have a pair of Favero Assiomas which are reputed to be extremely accurate. I'll put them on soon and share what I find.

Out of curiosity, does the Kiox have a way to upload playback data? DC Rainmaker is supposed to have a tool where you can compare data from different sensors on overlaid graphs. That would be even better than me verbalizing what I find.

No- the kiox doesnt support broadcasting data , so you cant get it on your computer.

The kiox can record a ride and store it using the bosch ebike connect app running on your phone , but I dont think it records all the different parameters that it can display like power,cadence etc . BUt I have to say I havent played with it much because the app is so terrible.

Interested to hear how the kiox my power numbers compare to the power figures from your pedals.

 

[Gyre]

Ok, just got back from my ride. I can't eliminate the possibility of leading edge and trailing edge errors, but the steady state numbers were good.

When the Garmin/Assioma is steady enough that the 3 second filter matches the instantaneous power, it matches the Kiox to within a few watts (about 1-2%).