Originally posted by Adventure Girl
I took a spin class once on this bike that had cranks that weren't attached to each other... Kind of hard to explain. But you know how when one foot is at 12:00, the other is at 6:00 -- always opposed to each other? Well on this bike You could have both feet at 12:00 at the same time or both at 6:00 (or 3:00 or 9:00)...

We tend to depend on the "push" stroke, and the "pull" part of the stroke just goes for a ride as the other side pushes (push left, push right, push left, push right). This bike was designed to help you work on your stroke on each leg. Each side had to make complete circles. It took a lot of concentration to ride. I think if I trained on one of these all the time my stroke would improve.
Power Cranks! I saw them demo'd at the Great Western Bike Rally. Major co-ordination required there!

jl