Originally Posted by
himespau
That is an insane deal. I know several people who have one and love the build stability. A couple people (usually bigger power riders) have mentioned getting a lot higher power numbers on it because the thing is so rock solid that every power input directly converts into power output. A very light rider I know went to it from a kickr core (so still a smart trainer) and lost a fair bit of power because he has a hard time putting out enough to get/keep the heavy flywheel going.
When I was debating between buying the Kickr Bike and Stages SB20, I actually preferred the more "flexible" feel of the Kickr as it feels more like riding a real bike and I find it more comfortable for longer sessions (compared to my rock solid gym bike with the same saddle).
I also think the old-school heavy "dumb" flywheel is not the way smart trainers/bikes are generally going. I much prefer the virtual powered flywheel on my Kickr Bike - which is different to the Kickr trainers and more like the Tacx Neo in that respect.
But I can see the appeal of the SB20 for Zwift racing and it would be hard to ignore at this price.