Am i doing something wrong?

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rogerer
Posts: 6
Joined: Sun Apr 07, 2019 8:17 am

Am i doing something wrong?

Post by rogerer »

I have been using my powerpod on and off for a couple of years, but last fall it started to give weird readings so I put it in the drawer. These readings might have been due to low battery on the speed sensor.

I have now updated it with newest firmware and did a full reset. Then I did a setup in Isaac (newest version) and chose best accuracy. Then I paired my garmin speed, cadence and hr sensors along with my Edge 520. Followed the lights on the powerpod and did a out and back calibration according to the insctruction sheet. After the calibration I did a very short ride, and my Edge showed real watts produced.

Then i left the bicycle for ten minutes (I do not know how to end a ride on the powerpod) and connected the powerpod to my computer. Isaac says it will not find a calibration ride, just the very short ride I did after the out and back calibration...

Am I doing something fundamentally wrong here?
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rogerer
Posts: 6
Joined: Sun Apr 07, 2019 8:17 am

Re: Am i doing something wrong?

Post by rogerer »

Some more screenshots:
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rogerer
Posts: 6
Joined: Sun Apr 07, 2019 8:17 am

Re: Am i doing something wrong?

Post by rogerer »

Screenshot of the short ride after the calibration ride:
Screen Shot 04-08-19 at 09.26 AM.PNG
Screen Shot 04-08-19 at 09.26 AM.PNG (177.55 KiB) Viewed 3525 times
Mark72
Posts: 4
Joined: Thu Mar 21, 2019 2:34 am

Re: Am i doing something wrong?

Post by Mark72 »

If I am not mistaken, Powerpod doesn't register the calibration ridefile. It only registers actual ride files.
I guess the short ride is too short to produce calibration data.
Velocomp
Velocomp CEO
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Joined: Fri Jan 11, 2008 8:43 am

Re: Am i doing something wrong?

Post by Velocomp »

It's in the release notes (somewhere)...we no longer record Calibration ride files.
John Hamann
rogerer
Posts: 6
Joined: Sun Apr 07, 2019 8:17 am

Re: Am i doing something wrong?

Post by rogerer »

thanks for answers!

So this means that it is calibrated?
Velocomp
Velocomp CEO
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Joined: Fri Jan 11, 2008 8:43 am

Re: Am i doing something wrong?

Post by Velocomp »

Post the .ibr ride file that occurred after your calibration, and I will check things.
John Hamann
rogerer
Posts: 6
Joined: Sun Apr 07, 2019 8:17 am

Re: Am i doing something wrong?

Post by rogerer »

I did a new calibration and took a ride. Here is the file after the new calibration.

It showed too much power going downhill, as far as I can see.
Attachments
iBike_04_08_2019_1331_25_km_HiDef.ibr
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Velocomp
Velocomp CEO
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Re: Am i doing something wrong?

Post by Velocomp »

Are you going into any kind of tuck on downhills? If so this would cause the high watts.
John Hamann
rogerer
Posts: 6
Joined: Sun Apr 07, 2019 8:17 am

Re: Am i doing something wrong?

Post by rogerer »

Just sitting normal, and on the steepest hills I am holding the lowest part of the handle bar.

I was sitting normal when I saw the high watts
Velocomp
Velocomp CEO
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Joined: Fri Jan 11, 2008 8:43 am

Re: Am i doing something wrong?

Post by Velocomp »

Two things:

1) You have very large headwinds on your downhills. This suggests a mis-calibration of your PP. I would do a new calibration ride. High headwinds on down hills would cause high watts

2) If you're riding in the drops on downhills that makes you more aero, which also would cause high watts. If this is your normal ride position then you should adjust your CdA down to about 0.35
John Hamann
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