Originally Posted by
Doge
It changes after 15 min of riding.
My son has rollers - Kreitler 3.5 inch. The power it takes to at the same RPM to warm up with 110psi is about 75W difference between his clinchers and his race silks.
How could we guess the power for your device?
Correct, but as I said, I warm it up until the viscosity of the fluid is at it's thickest before starting the 30 min. interval. By switching tires on your sons rollers, you've allowed variables to be entered into the equation. No, you can't guess the power on my particular machine. I asked for "an approximation" just to see what kind of ballpark I'm in, that's all.