I did my first rider today using Speed/Cadence sensor on a Mag trainer. It took incredible amounts of effort to get to even 15 mph on the flats. I then tried it using the setting indicating that I was on a fluid trainer and that seemed much more accurate vs my output. How is it calculated of the trainer is not defined. Could I use Zwift on rollers?
It will never be accurate if you don’t choose your specific trainer. FYI.
Zwift works great with rollers, but you’ll need a power meter.