Powerlink v Kickr Accuracy

Which is more accurate, Wahoo Powerlink pedal or Kickr v5

Have an ICE VTX on the Kickr v5 with a left wahoo powerlink Pedal.

They both give pretty much the same cadence, but the powerlink wattage consistently reads higher than the Kickr such as 142-150 v 132.

They are both about the same for accuracy if calibrated correctly, you are probably seeing some drive train loss on the kickr

That is possible due to the chain being 3 times the length of a bicycle

The powelink is auto calibrating, the Kickr i think kind of is aswell when you coast I think.

  • Clean your chain
  • your PM being single sided has the potential to cause that much variance.
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Chain imaculate as trike new, had it’s first lube

I am wondering though, should I get powerlink on both pedals or will the accuracy improvement be minor?

With a single sided PM, the power you see is left side x 2. That might be accurate, it might not, you have no way of knowing. It depends how much you care about it.

FWIW anytime I’ve compared my Kickr v5 to my dual sided Powerlink pedals they are within a few watts.

To be honest , if the dual pedals give a lower reading like the Kickr, I’d prefer the left pedal as inflates my ego by giving a higher reading.

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I don´t understand what´s the point to compare that.
Indoor I rely on the trainer power sensors.
Outdoor I rely on pedals power sensor.
That´s all.

Double recording, for example.
I personally use in- and outdoor my power meter and can exactly compare power data in- and outdoor. Tacx Neo trainer shows always a little bit less (drivetrain loss).

Understood.
I personaly very compare myself (in vs out).
I compare myself to others whatever the environment.

Interesting your point on tacx since I have the opposite view : I ride on tacx neo since 2015 and just moved to wahoo because of the virtual shifting.
I happens the tacx neo offers me more wattage on climbs compared to the kickr core.

Because when you’re training you want the power numbers to be the same indoors and outdoors.

Honestly that’s more important than the number being correct if you’re doing your workouts based on outdoor numbers on the trainer, those workouts need to be on the same scale.

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Comparing two different power meters reminds me of the old saying - “Never go to sea with two chronometers; take one or three.”
You’ll never know which one is correct.
Pick one and be happy with it.
The only real reason to dual record is in case one has a massive failure, I would not do day to day comparisons unless you are doing some sort of testing.

Since the design and the components are not the same, it is improbable to get exactely the same results.

I use on the trainer the bike I use outdoors, it is the exactly the same (of course the power, not the distance) - so it is exactly comparable.

I use a 4iiii meter on most of my bikes and often compare against my V5

Different sample rates and kickr power smoothing will often throw the numbers out when watching the head unit in normal riding, I look at them closer in an erg interval that’s at least 5 mins long to make sure everything is coming into line.

It can also make a difference if your left leg is stronger or in my case weaker than the right, I’m usually 45/55 balance in an effort due to a leg issue, on the 4iiii you can apply a scaling factor…. Not sure if wahoo do it, worth a check