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Bad Tilt

Posted: Sat Aug 26, 2017 1:53 am
by spangelsaregreat
Hi,

Question about how bad tilt works. I use an out front mount that does not have a stop like the Powerpod mount. I fit the power pod then slip a 2mm Allen key into the gap to act as a stop. When I set it up I push the Powerpod backwards to get it level. This allows for the tilt on the out front mount. It is slightly angled upwards to make Garmin screen more visible.

I did a calibration ride which I sent Tom who said it looked good and from what I could see the watts are consistent. The following day I did a ftp ride but the watts were a bit high especially on descents.

The next day I rode to work which is mainly downhill again with high watts. I realised when I got to work I had pushed the Powerpod forwards when I fitted it. I moved it more level by eyeball and the watts were back to normal.

I rode to and from work yesterday and again the watts look good. I used the 2mm Allen key and pushing the Powerpod backwards for fitting it.

I was playing with the bad tilt calibration option last night to try to work out what my ftp should be. I noticed even with the rides where the Powerpod was fitted correctly it amends the watts albeit by a smaller amount.

Firstly how do I apply a bad tilt calibration to my Powerpod? Secondly do I need to apply it anyway given Tom suggested my initial calibration was fine?

I will post up the ibr files shortly.

Regards

Re: Bad Tilt

Posted: Sat Aug 26, 2017 2:19 am
by spangelsaregreat
Here are the ibr files.

This is the initial calibration ride
iBike_08_21_2017_1744_3_Miles_CalRide.ibr
(111.82 KiB) Downloaded 266 times
This is the ftp ride where the PowerPod was pushed forwards
iBike_08_22_2017_1805_20_Miles_HiDef.ibr
(601.15 KiB) Downloaded 238 times
This is the ride to work again wit PowerPod pushed forwards
iBike_08_24_2017_0700_7_Miles_HiDef.ibr
(186.54 KiB) Downloaded 253 times

Re: Bad Tilt

Posted: Sat Aug 26, 2017 2:20 am
by spangelsaregreat
This a ride to work with Powerpod pushed backwards (same position as initial calibration ride)
iBike_08_25_2017_0706_7_Miles_HiDef.ibr
(180.85 KiB) Downloaded 340 times
Thanks

Re: Bad Tilt

Posted: Sat Aug 26, 2017 5:01 am
by spangelsaregreat
Here is the calibration ride for my second bike.
iBike_08_26_2017_0752_4_Miles_CalRide.ibr
(119.17 KiB) Downloaded 226 times
and the ride I did after calibration.
iBike_08_26_2017_0804_17_Miles_HiDef.ibr
(490.45 KiB) Downloaded 277 times
Again the power looks good and reacts as I would expect it to.

This bike is a Giant Propel with RideSense which I know is not recommended or supported. However, it paired fine with the PowerPod and seems to be working well. Don't see any real difference between the way it shows power compared to my other bike that has magnetless Garmin sensors.

Regards.

Re: Bad Tilt

Posted: Mon Aug 28, 2017 1:26 pm
by Velocomp
Sometimes the RideSense sensors work...sometimes they don't.

In your case, they ARE working, so enjoy!