Hi John,
I originally did a cal ride last year, then had you review and you tweaked it for me around sept. This April I updated the config with new accurate weights of me and my gear but I've been noticing that my power is being reported about 50 watts higher than it should be. The windier and more oblique the angle, the higher the discrepancy seems to be. It also seems that the more power I generate, the bigger the discrepancy i.e. 200ish watts reports as 230-240, 300 watts repots as 375-390.
This is obviously in general terms- I base this all on the last 5000 miles of indoor Zwifting on a Tacx Neo since November. I'm pretty used to the feel of wattage at various levels.
This ride I'm attaching from yesterday was an easy ride, I only exerted a bit when I turned south and caught the tailwind. The power reported is too high for the feel and for the heart rate.
Can you please take a look? Should I scrap it all and do a new fresh calibration ride? I thought it was always doing that automatically within 90 seconds or so of starting out...
Thanks,
Biff
Calibration still off
Calibration still off
- Attachments
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- iBike_05_12_2021_1552_39_Miles.ibr
- (349.74 KiB) Downloaded 121 times
Re: Calibration still off
Almost forgot, one more question:
I have the pitot tube- what are the ramifications of removing that? does it affect the PP? Can I add and remove it at will without affecting the PP?
I have the pitot tube- what are the ramifications of removing that? does it affect the PP? Can I add and remove it at will without affecting the PP?
Re: Calibration still off
Your wind calibration is off--too much headwind.
I corrected it using the "Check Calibration" command. This is a bit risky because this isn't a true out and back...
If you remove the pitot tube you will need to do a new cal ride.
I corrected it using the "Check Calibration" command. This is a bit risky because this isn't a true out and back...
If you remove the pitot tube you will need to do a new cal ride.
- Attachments
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- Biff_Corr_05_12_2021_1552_39_Miles.ibr
- (515.81 KiB) Downloaded 126 times
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- UntitleBiff_Corr.ibp
- (744 Bytes) Downloaded 116 times
John Hamann
Re: Calibration still off
John-
The profile won't load. It errors out and says -3.129 friction value is no good.
The profile won't load. It errors out and says -3.129 friction value is no good.
Re: Calibration still off
Try this
- Attachments
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- Biff_corr.ibp
- (591 Bytes) Downloaded 113 times
John Hamann