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Kickr power calibration question

MattAaronsonMattAaronson
in General Training Discussions

Should the Kickr power be calibrated pretty closely to a quarq powermeter? I did my first ride on it today using the "level" mode, i.e. not erg mode. I did 2x12' and felt the power was reading much too high given both RPE and HR.

Do most people find the Kickr power is within a couple of % or is it really a different calibration?

Comments

  • Al TruscottAl Truscott

    Matt - When I started with my Kickr in Dec, I immediately noticed the same thing. Compared to my PowerTap readings, correlated to RPR and HR, the Kickr was showing about 12.5% higher watts, as recorded by the same head unit (Joule). I can't compare the two directly, as I have no PT hub when I'm on the Kickr. The more important factor is whether the Kickr produces a consistent resistance when it's showing the same power # across different days. I have not noticed any issues with that, again correlating to RPE and HR.

  • Brad MarcusBrad Marcus
    I noticed the same thing. I have a KICKR and a powerbeam pro and then a QUARQ on my bike and I get 3 different readings on all of them. Since the quarq is on my bike that I will ride outside, I use the ERG setting and go with the quarq and let the TrainerRoad send resistance to my trainer. I generally ride the PBP and my wife is on the KICKR. Agree with Al that as long there is consistency, you are ok. I don't jump from using power readings between the 3.
  • GMAN 19030GMAN 19030
    http://forum.slowtwitch.com/forum/S..._P5396505/

     

    Lots of info in this thread.

  • morpheusmorpheus
    So, if I buy a Kickr, I get a 12.5% boost to my FTP! Who do I write the check out to?!?!
  • John HenaultJohn Henault
    Matt - I find the Kickr reads high compared to my Quarq (typically about 15% high during the high watt sessions). The only times the difference matters to me is when I test and when I ride outside.

    Right now, I am stuck on the trainer and use TrainerRoad, so the difference doesn't matter. When I test, however, I record the test with TrainerRoad for the Kickr, and my Garmin 510 for the Quarq. This allows me to calculate my FTP for outside rides (using the Quarq) and the FTP that I will use for TrainerRoad (using the Kickr).

    The link Bob posted has some good info about Wahoo implementing a fix that allows the Kickr to use the power signal from the Quarq. That is promising and should equalize the differences. There are a couple of other fixes discussed in the ST discussion, but I am not willing to start messing with screws or taking my Kickr apart to implement those fixes.
  • robin sarnerrobin sarner
    I get a little higher readings from the quarq.
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