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  1. #6026
    Senior Member bbbean's Avatar
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    Quote Originally Posted by Mose View Post
    I'm unfamiliar with this "trophies" you speak of. I did, however, win a bottle of chain lube at a mtb race once. And a hat that says Root 66 on it. So worth it.
    LOL - I'm also a competitive shooter and my wife used to greet me when I came back from a match by asking "Did you win another hat, or was this a coozie match?"

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    http://veloviewer.com/athlete/2615827/

  2. #6027
    Not actually Tmonk TMonk's Avatar
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    I have a ptap/Joule configuration question:

    Why do I see no readings on my Joule?

    I have installed the software, and navigated through the "find" and "pair all" portions of the sensor menu. It doesn't really give me any verification that it indeed has (or hasn't) paired to the G3 hub unit, and afterward I get no readings when I pedal the bike.
    "Your beauty is an aeroplane;
    so high, my heart cannot bear the strain." -A.C. Jobim, Triste

  3. #6028
    Senior Member shovelhd's Avatar
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    Is there a screen on the Joule for sensor ID?

  4. #6029
    Not actually Tmonk TMonk's Avatar
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    No, there is no sensor ID; it just goes back to the sensor menu.

    I followed the video below and received no ID number after attempting to pair:

    "Your beauty is an aeroplane;
    so high, my heart cannot bear the strain." -A.C. Jobim, Triste

  5. #6030
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    try new batteries?
    ...

  6. #6031
    soon to be gsteinc... rkwaki's Avatar
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    Quote Originally Posted by valygrl View Post
    try new batteries?
    No comment...
    "if you ride it the way it's meant to be ridden there's no way any wife is less of a ***** than a bicycle." - gstein

  7. #6032
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    yesterday - warmed up and a 20min FTP test into a headwind at 290 watts.

    Question for you Golden Cheetah users... my power meter drops signals here and there, once for 10 seconds during that test. I can Edit the ride and delete those rows, and the interval itself seems to update in GC with new Average and XWatts for that period. But the CP graph and chart doesn't seem to be affected. Is there anything to do there to remove data points where the meter drops and update the whole ride?

  8. #6033
    Powered by Borscht ovoleg's Avatar
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    Okay I broke down and looked at WKO+ for a ride where I did a set of Vo2 3min intervals. The rest of the ride was Z2. Here is the breakdown

    Total Ride Time: 1:43:00

    It doesn't seem like its way off, it didn't capture the max 3min power



    Quarq Powertap
    5s Peak 702 705
    10s Peak 605 592
    20s Peak 543 525
    30s Peak 498 489
    1min Peak 418 403
    2min Peak 371 379
    5min Peak 295 301
    10 min Peak 276 275
    20 min Peak 262 259
    30 min Peak 256 252
    60 min Peak
    226 221
    First 15min of Ride
    180 187
    Average Power

    208 203
    Normalized Power

    258 254
    -Cat-3-o-meter: TBD :/

  9. #6034
    Powered by Borscht ovoleg's Avatar
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    if any guru's could figure some of this data out for me it would be great I am confused.
    -Cat-3-o-meter: TBD :/

  10. #6035
    Senior Member shovelhd's Avatar
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    Quote Originally Posted by clones2 View Post
    yesterday - warmed up and a 20min FTP test into a headwind at 290 watts.

    Question for you Golden Cheetah users... my power meter drops signals here and there, once for 10 seconds during that test. I can Edit the ride and delete those rows, and the interval itself seems to update in GC with new Average and XWatts for that period. But the CP graph and chart doesn't seem to be affected. Is there anything to do there to remove data points where the meter drops and update the whole ride?
    Ten seconds won't affect CP much. The bigger issue is why your power meter is dropping.

  11. #6036
    Making a kilometer blurry waterrockets's Avatar
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    Quote Originally Posted by ovoleg View Post
    if any guru's could figure some of this data out for me it would be great I am confused.
    I can't remember how to do it in WKO, but in GC, you can search for intervals. So I can say find my six best 3' intervals, and it will return that part of my workout for me.

  12. #6037
    Powered by Borscht ovoleg's Avatar
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    Quote Originally Posted by waterrockets View Post
    I can't remember how to do it in WKO, but in GC, you can search for intervals. So I can say find my six best 3' intervals, and it will return that part of my workout for me.
    I'll install GC shortly, how does one accomplish this?
    -Cat-3-o-meter: TBD :/

  13. #6038
    These Guys Eat Oreos Creatre's Avatar
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    Is that the exact same ride Oleg?
    Category 2 | | Velogames BikeForums Leagues: 1st - 2012 Veulta, 1st - 2011 Vuelta, 2nd - 2013 Vuelta, 3rd - 2012 Giro, 4th - 2012 TdF

  14. #6039
    Senior Member jsutkeepspining's Avatar
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    there's a fast find function in WKO+. google it if you cant find it using the words fast find
    cat 1-o-meter: wtf am i doing??????
    Quote Originally Posted by Racer Ex View Post
    You're not dumb. You're just less smart.

  15. #6040
    Powered by Borscht ovoleg's Avatar
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    Figured it out, it was easy:

    For the Quarq(3min intervals)
    367, 366, 365, 365, 357, 347

    For the Powertap( 3 min intervals)
    373, 362, 356, 350, 349, 345

    Hey GC is actually kind of neat~!

    Avg of 3x6 intervals: Quarq: 361.167 W
    Avg of 3x6 intervals: Powertap: 355.833 W
    Last edited by ovoleg; 04-10-14 at 11:19 AM.
    -Cat-3-o-meter: TBD :/

  16. #6041
    Powered by Borscht ovoleg's Avatar
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    Quote Originally Posted by Creatre View Post
    Is that the exact same ride Oleg?
    exactly same ride. I had the Quarq and Powertap both mounted on the same bike and I borrowed my friends Garmin 810 which I had in my back pocket.
    Here is a display from both

    -Cat-3-o-meter: TBD :/

  17. #6042
    Powered by Borscht ovoleg's Avatar
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    What I notice from looking at the 3min data of each interval is that the powertap is either dead-nuts on or high/low relative to the Quarq. I'd like to assume the Quarq is more consistent, it jives with my RPE
    -Cat-3-o-meter: TBD :/

  18. #6043
    Senior Member shovelhd's Avatar
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    Based on my experience, don't.

  19. #6044
    Senior Member hack's Avatar
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    Quote Originally Posted by ovoleg View Post
    Figured it out, it was easy:

    For the Quarq(3min intervals)
    367, 366, 365, 365, 357, 347

    For the Powertap( 3 min intervals)
    373, 362, 356, 350, 349, 345

    Hey GC is actually kind of neat~!

    Avg of 3x6 intervals: Quarq: 361.167 W
    Avg of 3x6 intervals: Powertap: 355.833 W
    So...1.5% RPD, seems like good data agreement to me. You can either view that 1.5% as instrument variability/drift or loss via drivetrain.

  20. #6045
    avatar by Sean Powers mike868y's Avatar
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    Quote Originally Posted by hack View Post
    So...1.5% RPD, seems like good data agreement to me. You can either view that 1.5% as instrument variability/drift or loss via drivetrain.
    that's what i was going to say. you're comparing two totally different platforms measuring two different things, that data seems to be pretty good. what's more important is that powertap today = powertap tomorrow.
    Quote Originally Posted by gsteinb View Post
    it depends

  21. #6046
    Senior Member shovelhd's Avatar
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    That's vey good data. When my Quarqs were failing peak power was off by hundreds of watts and FTP by double digits.

  22. #6047
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    Quote Originally Posted by ovoleg View Post
    Figured it out, it was easy:

    For the Quarq(3min intervals)
    367, 366, 365, 365, 357, 347

    For the Powertap( 3 min intervals)
    373, 362, 356, 350, 349, 345

    Hey GC is actually kind of neat~!

    Avg of 3x6 intervals: Quarq: 361.167 W
    Avg of 3x6 intervals: Powertap: 355.833 W
    I find it useful to compare the ave power of each interval to the NP of the interval along with HR for each, variation in NP and ave power allows me to adjust the following interval starting power numbers to help with pacing, HR indicates my current aerobic state along with a second measure of how hard I went. I also like to see how my HR to power ratios change during the session. I like to store those numbers in a spreadsheet so I can see trends during training blocks to see how my training is effecting my times. The number one thing I am looking for is how my body responds during various phases of training so that I can use that to "peak" for top events. Number 2 thing I am looking for is fatigue so that I don't over train. After that I will be using the numbers to help ensure that when I move to the track I can ensure that I am not hurting my power numbers too much with my TT position. More data = more better.

  23. #6048
    Powered by Borscht ovoleg's Avatar
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    Quote Originally Posted by shovelhd View Post
    Based on my experience, don't.
    don't assume the Quarq is more consistent or ?
    Quote Originally Posted by hack View Post
    So...1.5% RPD, seems like good data agreement to me. You can either view that 1.5% as instrument variability/drift or loss via drivetrain.
    I was looking at each individual interval more closely, sometimes its off by almost 10%
    Quote Originally Posted by mike868y View Post
    that's what i was going to say. you're comparing two totally different platforms measuring two different things, that data seems to be pretty good. what's more important is that powertap today = powertap tomorrow.
    what do you mean powertap today = powertap tomorrow?
    Quote Originally Posted by shovelhd View Post
    That's vey good data. When my Quarqs were failing peak power was off by hundreds of watts and FTP by double digits.
    I hope mine never becomes this way , but I wouldn't know because it's going to be dedicated to the track bike and I doubt I'd be doing any FTP testing, the peak power might screw with me tho.
    -Cat-3-o-meter: TBD :/

  24. #6049
    These Guys Eat Oreos Creatre's Avatar
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    The 1.5% overall difference to me, is not worrisome. I'd consider that within spec.

    On the up to 10% difference, I would also trust the powertap over the quarq based on my personal experience. Even if it's not what you want to hear.

    Overall though, it looks to me like both power meters are performing up to spec and are pretty closely matched.
    Category 2 | | Velogames BikeForums Leagues: 1st - 2012 Veulta, 1st - 2011 Vuelta, 2nd - 2013 Vuelta, 3rd - 2012 Giro, 4th - 2012 TdF

  25. #6050
    Senior Member
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    Quote Originally Posted by ovoleg View Post
    what do you mean powertap today = powertap tomorrow?
    I am pretty sure he was just saying pick one and use that. Trends between two different power meters are not as important as picking one and using it to see you how you trend with just the one.

    However it seems that you are starting to doubt the powertap repeatably which is the point of your testing different ways to measure power. As has already been mentioned you should ignore your one outlier dataset and only worry about it if it continues. Trends are what people look for with power ... along with their PR, because we all like to PR, but trends and repeatability are what really matter.

    I too have two different systems, one for road and one for track ... makes for a very difficult comparison between the two workouts, as if I already didn't have enough issues with that.

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