Search found 213 matches

by Zoltan
Wed Apr 10, 2013 6:21 pm
Forum: General Discussion
Topic: new iBike Newton, last ride not recorded?
Replies: 8
Views: 7022

Re: new iBike Newton, last ride not recorded?

So... if the battery in the Newton is low it will end the ride, save the data and start a new ride. This can happen a couple of times before the battery actually gives out. It does this seamlessly so the data displayed still shows totals although it's been split into separate so as to lose as littl...
by Zoltan
Wed Apr 10, 2013 5:56 am
Forum: Isaac software
Topic: English vs metric bug STILL persists in Isaac 2.1.4
Replies: 9
Views: 7311

Re: English vs metric bug persists in Isaac 2.0.1, too

Velocomp wrote:We will look at this
FYI now Isaac 2.0.3 is out, but the problem did not disappear. Did you have time to really look at it?
by Zoltan
Tue Apr 02, 2013 3:54 pm
Forum: General Discussion
Topic: Use of DFPM data by iAero or Newton+
Replies: 7
Views: 6198

Re: Use of DFPM data by iAero or Newton+

I checked and Cm is 1.02 even if I have a Powertap as a sensor paired to iAero. So now I am confused why to multiply the raw power data of my iBike by 1.02 instead of 1.00.
by Zoltan
Mon Apr 01, 2013 7:45 pm
Forum: General Discussion
Topic: Use of DFPM data by iAero or Newton+
Replies: 7
Views: 6198

Re: Use of DFPM data by iAero or Newton+

... that is, the forces on the crank will be about 2% higher than those measured by the PT or by the iBike. 1.02 is the Cm factor that you will find in Isaac. I forgot to mention that I have a PT Elite+, type is set to 5 next to ID of Power In and DFPM Model is set to PT ANT+ Sport. Now I feel I un...
by Zoltan
Mon Apr 01, 2013 7:02 pm
Forum: General Discussion
Topic: Use of DFPM data by iAero or Newton+
Replies: 7
Views: 6198

Re: Use of DFPM data by iAero or Newton+

Thx for the explanation. So do you follow the opposite way that I assumed to make powers calculated by iBike and the DFPM comparable before getting continuous CdA with the help of a DFPM other than PT, do you?
by Zoltan
Mon Apr 01, 2013 5:01 pm
Forum: General Discussion
Topic: Use of DFPM data by iAero or Newton+
Replies: 7
Views: 6198

Use of DFPM data by iAero or Newton+

Sorry if it was already discussed, but does iBike consider that Powertap measures at the downstream of the chain, why the other DFPMs do not? I mean iBike can work the power data without considering any drivetrain efficieny, which is not the case with eg SRM. I remember that there is some types of D...
by Zoltan
Sat Mar 30, 2013 2:10 pm
Forum: Isaac software
Topic: English vs metric bug STILL persists in Isaac 2.1.4
Replies: 9
Views: 7311

Re: English vs metric bug persists in Isaac 2.0.1, too

Thanks a bunch. Looking forward to your findings.
by Zoltan
Thu Mar 28, 2013 9:56 pm
Forum: Isaac software
Topic: English vs metric bug STILL persists in Isaac 2.1.4
Replies: 9
Views: 7311

Re: English vs metric bug persists in Isaac 2.0.1, too

May I get any reaction as regards whether my understanding about this issue is just simply wrong or my bug report is something that will be shortly fixed?
by Zoltan
Mon Mar 25, 2013 2:56 pm
Forum: Isaac software
Topic: won't export to TCX
Replies: 4
Views: 4111

Re: won't export to TCX

Some exporting facilities including fitness file converters like TcxConverter or gpsies.com/convert do require GPS data to make the conversion.

But why dont you simply use .csv of Isaac? For your sake I tested it and TrainingPeaks seems to eat it flawlessly.
by Zoltan
Wed Mar 20, 2013 5:14 pm
Forum: Isaac software
Topic: English vs metric bug STILL persists in Isaac 2.1.4
Replies: 9
Views: 7311

English vs metric bug STILL persists in Isaac 2.1.4

I upgraded to 2.0.1, but i found that the users with metric background still cannot get rid of the returning english setting in some menus as it is the case for a long while. For the list where I found returning english setting see http://www.ibikeforum.com/viewtopic.php ... 757#p15256
by Zoltan
Mon Mar 18, 2013 10:32 am
Forum: Isaac software
Topic: Isaac 2.0.0 forces x-axis to "time"
Replies: 3
Views: 3838

Re: Isaac 2.0.0 forces x-axis to "time"

It is the same issue with metric units reverting to english, which will be fixed too. Look for a new build in the next few days. Do you mean you are about to fix all the instances of sticking to english units? Like in all the menu items of Analyze menu column or in Tools/Effort speed? Or in Edit pr...
by Zoltan
Fri Mar 08, 2013 1:13 pm
Forum: Newton Setup
Topic: Calibration ride does not "CALIBRATE"
Replies: 10
Views: 7518

Re: Calibration ride does not "CALIBRATE"

But it did not find anything. That raised my question. Again what happened: 1. I made a ride today. I also made a proper cal ride w/o coast downs and Crr was set to fix in iBike before the cal ride. The profile is there it is downloadable by Isaac, I tried. 2. I downloaded all the rides including th...
by Zoltan
Fri Mar 08, 2013 1:05 pm
Forum: Gen III iPro and iAero
Topic: Is Cal ride periodically needed?
Replies: 3
Views: 9529

Re: Is Cal ride periodically needed?

racerfern wrote:Yes, things can change when just sitting around. Strange but true. A new cal ride fixes everything.
But do you know the reason behind? Ageing materials or climate changes? It is really strange.
by Zoltan
Fri Mar 08, 2013 12:24 pm
Forum: Gen III iPro and iAero
Topic: Auto tilt again
Replies: 1
Views: 8511

Auto tilt again

Sorry for my short memory, but I dont remember what I read about auto tilt. Is this process ALSO needed to make some correction for rough roads in order to increase the displayed power to give a better estimation or is it ONLY to calculate the tilt to get a proper slope even if the tilt is not prope...
by Zoltan
Fri Mar 08, 2013 12:12 pm
Forum: Gen III iPro and iAero
Topic: Is Cal ride periodically needed?
Replies: 3
Views: 9529

Is Cal ride periodically needed?

I own my Gen3 for 6 months or so. It was not so easy to make a calibration with my trekking bike, because I had got a constant tailwind for some rides. But finally I could sort it out to an acceptable extent. Then I put my trekking bike into the garage for the winter and dug for it only this week. I...
by Zoltan
Fri Mar 08, 2013 11:57 am
Forum: Newton Setup
Topic: Calibration ride does not "CALIBRATE"
Replies: 10
Views: 7518

Re: Calibration ride does not "CALIBRATE"

1) When you download your ride using the "Download Coast Downs and Calibration Ride" method you either must have done some coast downs or you need info from another power meter to work with. 2) If you download the ride and click "Check Calibration" then coast downs are not neede...
by Zoltan
Thu Jan 24, 2013 9:32 am
Forum: Newton Technical Support
Topic: Adjust "errors" in slope after a ride
Replies: 3
Views: 3682

Re: Adjust "errors" in slope after a ride

NorBike wrote:Because with Newton+ Isaac can calculate Cda when coasting down a descent. I wanted to enlighten what an error in slope can do with this measurement.
Aha, understood. Thanks for the clarification.
by Zoltan
Wed Jan 23, 2013 5:26 pm
Forum: Newton Technical Support
Topic: Adjust "errors" in slope after a ride
Replies: 3
Views: 3682

Re: Adjust "errors" in slope after a ride

At 30km/h, a difference in slope from 1.1% to 1.8% and the cda will increase from 0.35 to 0.50). Just a tiny question. Why dont you simply say that independently from the speed the difference in slope from 1.1% to 1.8% equals to a change of 0.007 in Crr? I mean a measurement error in slope can be c...
by Zoltan
Sun Jan 13, 2013 6:45 am
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

" but beggars can't be choosers)"

Except on beggars' banquet. ;-)
by Zoltan
Sat Jan 05, 2013 7:53 am
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

I am not an expert in ibike calibration, but my finding was that best method for estimating Crr is making out and back cal rides at a speed being close to the average riding speed of everyday use.

Maybe, I am wrong, but that what I experienced with gen3.
by Zoltan
Fri Jan 04, 2013 10:12 am
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

"So a confidence boosting correspondence there. But I am intrigued that I always seem to get better Crr values than expected"

Yep, these numbers are very low, I mean in casoe of road bike. Do you have a clincher or tubular? For a clincher
by Zoltan
Sun Dec 30, 2012 6:58 am
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

Sorry but I disagree. You may need barometric pressure, because in my case it is the air pressure at sea level, which is corrected by your altitude to get the air pressure at that altitude. At least in my country the air pressure published by all the national weather data station are adjusted to sea...
by Zoltan
Sun Dec 30, 2012 5:49 am
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

I calculated the air density using a complex formula that I built up from two others found on web, so I could incorporate more variables into one formula than it was possible just relying on the web. I also incorporated the air density formula from https://www.brisbanehotairballooning.com.au/faqs/e...
by Zoltan
Sat Dec 29, 2012 4:08 pm
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

"My spreadsheet takes acceleration into account"

The same for mine. It is calculated by a software of mine from the gpx data.
by Zoltan
Sat Dec 29, 2012 10:02 am
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

Russ, Later I will send you my excel spreadsheet in an email, just PM me your email address, because as i remember PM doesnt allow attachments. You will be mad from that beauty. I calculated the air density using a complex formula that I built up from two others found on web, so I could incorporate ...
by Zoltan
Fri Dec 28, 2012 3:51 pm
Forum: General Discussion
Topic: Using Newton on a Touring Bike
Replies: 57
Views: 54045

Re: Using Newton on a Touring Bike

Ken or anyone interested, I have just completed a set of measurements using various methods to arrive at CdA and Crr with confidence. In this case, with 700-32 Gatorskin Hardshells for which I could find no Crr data posted anywhere. Before we get into it, going back to my cal ride and using this da...
by Zoltan
Fri Nov 16, 2012 3:48 am
Forum: Isaac software
Topic: Wind repair => Total climb is recalculated
Replies: 4
Views: 4285

Re: Wind repair => Total climb is recalculated

Thanks for clarification, it implies that Isaac does not re-calculate the total climb data of Newtons in case of wind repair. Strange for me.

Anyway is there any way to roll back those versions of iBike Software which were tailored to GenIII. I mean can I download some previous versions?
by Zoltan
Thu Nov 15, 2012 1:51 pm
Forum: Isaac software
Topic: Wind repair => Total climb is recalculated
Replies: 4
Views: 4285

Re: Wind repair => Total climb is recalculated

It is such a bad thing to feel being boycotted.

Did I raise the question in an inaccurate way? Did I make a comment with an inappriate tone? Has the support of Isaac stopped if an inquiry is not linked to the latest generation of the products?
by Zoltan
Wed Nov 07, 2012 4:17 pm
Forum: Isaac software
Topic: Wind repair => Total climb is recalculated
Replies: 4
Views: 4285

Re: Wind repair => Total climb is recalculated

Let me ask why I dont get any short official feedback?

Like
a) it is as intended
or
b) it is a sort of bug, please be patient we will fix it.

Thanks
by Zoltan
Mon Nov 05, 2012 4:18 pm
Forum: Frequently Asked Questions
Topic: Time zones used by the forum engine
Replies: 0
Views: 2581

Time zones used by the forum engine

I live in CET meaning Central European Time Zone, which is UTC+1 (GMT+1 in the winter, GMT+2 in the DST).

After whole Europe switched to the normal wintertime, happened last Sunday, the timestamps of my posts are shown incorrectly, so I cheated my timezone to UTC+0 to get the proper timestamps.