I'll apologize in advance; I'm sure I can't provide enough information for a firm answer to my question (I have zero experience with computrainer).
I have a newer Shiv with a 10 month old Power2Max Type S. It is mostly used on a Kickr at home.
Today I had a VO2 Max test where they used some variety of computrainer (again, I know nothing about Computrainer).
During the first 1/2 of the 10 minute warm up the computrainer and my PM were pretty close; +/- 5 watts. The person administering the test adjusted something, and then my Power2Max read about 20 watts higher than the computrainer. I asked about it, and was told that there was always a bit of a difference, but the numbers would get closer as the test went on.
There was a 3 minute break between the end of the warm up and the beginning of the test where I sat on the bike but didn't pedal. When we started doing the test my power2max was showing 60 watts higher during the first 3 minute step. By the time we got to the 5th stage where my legs gave out, the Power Meter was reading 80 watts higher.
After I got home I put my bike back on my Kickr, and just controlled the Kickr through the Wahoo app on my iPhone in ERG mode and watched the power from my PM on my Garmin. The power on my garmin showed within 10 watts on the Kickr at 100, 200, 300, and 400 watts (kickr always higher, but the 2 were close).
So, if the person doing the test made a mistake, is it possible to get a 60 to 80 error? I have a hard time believing that my Kickr, my Power2Max, and my FTP (insert sob) are all 60-80 watts off.
I have a newer Shiv with a 10 month old Power2Max Type S. It is mostly used on a Kickr at home.
Today I had a VO2 Max test where they used some variety of computrainer (again, I know nothing about Computrainer).
During the first 1/2 of the 10 minute warm up the computrainer and my PM were pretty close; +/- 5 watts. The person administering the test adjusted something, and then my Power2Max read about 20 watts higher than the computrainer. I asked about it, and was told that there was always a bit of a difference, but the numbers would get closer as the test went on.
There was a 3 minute break between the end of the warm up and the beginning of the test where I sat on the bike but didn't pedal. When we started doing the test my power2max was showing 60 watts higher during the first 3 minute step. By the time we got to the 5th stage where my legs gave out, the Power Meter was reading 80 watts higher.
After I got home I put my bike back on my Kickr, and just controlled the Kickr through the Wahoo app on my iPhone in ERG mode and watched the power from my PM on my Garmin. The power on my garmin showed within 10 watts on the Kickr at 100, 200, 300, and 400 watts (kickr always higher, but the 2 were close).
So, if the person doing the test made a mistake, is it possible to get a 60 to 80 error? I have a hard time believing that my Kickr, my Power2Max, and my FTP (insert sob) are all 60-80 watts off.