teinvall wrote:
Yes that's right it measures torque and cadence instead of force and cadence as in my pedals. I had a look at the power meter and power2max seems to be using an accelerometer based cadence sensor so it will probably just meassure cadence once per crank revolution meaning power is over estimated. Since you get the same numbers on your powertap as your power2max maybe this oval gear error and drive train loses cancel each other out.
I hope I will be able to power o set of P1 pedals soon to verify that my Polar pedals are correct.
Spinndown shouldn't give different results in different gears since drive train is stationary will spinndown is carried out.
I run Cycleops Rouvy software for my indoor sessions. Within this you have the option for "hot calibration" that is valid only for Cyclops trainers. When this is enabled the software uses the temperature reading from the trainer to know when it's hot enough and ready for calibration. Sometimes it takes 10 minutes and sometimes it take 30-40 minutes depending on what kind of session I'm running.
Since your readings are very off I would suggest you contact there support. My experience is that they are very quick to reply.
Doh! didnt think that one through, did i?? :p
Regards "hot calibration" thats for wheel on trainers; hammer shouldn't require it (and also in the cycleops blog says so).
I think i've got to the bottom of the problem.
It appears that it's something in trainerroad. it's only doing it when i run it through TR, and does it either in BT or Ant+ mode.
Using Rouvy, it tracks where i'd expect, so looks like I'll have to email TR support, or at least temporarily use power match.
Attached pic has had a few little tweaks as rouvy autopaused and my garmin doesn't, just to bring the time scales a little closer.
Trainerroad pic had spindown at 0, 10, 20 and 40 mins
Attached Files:
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clubbingfull1.JPG (85.8 KB)
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trainerroadfull1.JPG (62.8 KB)