What spin bike has the heaviest flywheel?

The gym I recently joined has the Schwin A.C. Performance bikes that are the best I’ve used.

Very adjustable, very smooth spin, but the best feature is the integral ANT+ Power Meter. You can
synch to a Garmin watch (some, not all) or download the workout to a USB memory stick.

The resistance I think is magnetic, not a felt pad, so the resistance increase is predictable. Not cheap,
but less than a set of wheels. I think someone said we’re working on the engine this year, not the aero.

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