Start of ride wrong.

Start of ride wrong.

Postby wormscoffer » Fri Feb 26, 2016 2:03 pm

Hello all

On today's ride I had a "stuck on scan" type of problem but have emailed support about that. After doing so, I thought I'd plug in the Newton and see if it recorded anything despite having nothing on the display for my 1 hour ride and behold - I had a data file.

However, the first 3km or so have silly power figures. Looks like bad tilt judging by the slope.

Not sure why, my last ride was about 5 days ago and 75km and was directly after charging the device from a completely flat battery (seems to do that if I don't use it for a couple of weeks) after which I restored my profiles from backup and did a calc ride. All was well.

So......how do I correct the first 3Km of power please? It also says I was drafting a few times which I wasn't as the ride was solo. As it is I can't import it into my training log as the power average and max figures are false.

TIA. :)

2016-02-26 (2).png
2016-02-26 (2).png (217.61 KiB) Viewed 945 times
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Re: Start of ride wrong.

Postby wormscoffer » Fri Feb 26, 2016 2:05 pm

If I do a repair ride for bad tilt the wattage goes through the roof and would make Sir Hoy jealous.
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Re: Start of ride wrong.

Postby Velocomp » Fri Feb 26, 2016 3:47 pm

Please post your ride file and we will try to help.
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Re: Start of ride wrong.

Postby wormscoffer » Fri Feb 26, 2016 3:59 pm

Here it is.
Attachments
iBike_02_26_2016_1235_27_km_HiDef.ibr
The ride
(538.71 KiB) Downloaded 36 times
wormscoffer
 
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Re: Start of ride wrong.

Postby Velocomp » Fri Feb 26, 2016 5:20 pm

Your tilt calibration was way out of whack at the beginning of the ride, and the Newton took 8 minutes to fix it.

I put the cursor at the 8 min mark, then used the command below to delete the first 8 minutes of the ride. After that everything is fine.
Attachments
Screen Shot 2016-02-26 at 4.19.35 PM.png
Screen Shot 2016-02-26 at 4.19.35 PM.png (207.5 KiB) Viewed 937 times
Wormscoffer_02_26_2016_1243_24_km_HiDef.ibr
(491.63 KiB) Downloaded 44 times
John Hamann
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Re: Start of ride wrong.

Postby wormscoffer » Fri Feb 26, 2016 6:11 pm

That's pretty much what I thought but the question is why?

Same bike, same profile, same mount as my last ride which was all completely OK.

Is there no way of taking the tilt from later in the ride and applying it to the first 8 minutes?

Do I need to ride around for 8 minutes before I go on a ride that I want accurate figures from for the whole ride?

Sorry for all the questions but if I'm doing something wrong then I need to know so I don't do it any more.
wormscoffer
 
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Re: Start of ride wrong.

Postby Velocomp » Fri Feb 26, 2016 7:42 pm

Yeah, I agree your Newton was a bit confused at the beginning of this ride.

If you wish you can do a Hard Reset. You may get odd watts for the first 8 minutes of your next ride, but then hopefully things will settle down.

At the end of each ride do a Trip Reset to save the settings from the finish of your ride.
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