200 RPM standing up on rollers.... Ewww!! I get a feeling that would produce results similar to attempting sex standing up in a hammock. At least for me. Like I said, on the E-motion rollers, by the time I'm hitting > 800 W, I'm at 120 - 130 RPM and things are just barely under control. Sounds like I need a whole lot more practice. Spinning, that is... don't own a hammock.