Originally Posted by queerpunk
learning about the concept of spin let me focus on my pedal stroke and helped me improve a great deal. understanding what is at play on a bike (of course, with the acknowledgement that it's different than on a geared, coasting bike) still matters when developing legs and how to think about using them.
i still focus on getting a smooth pedal rotation, with as-close-to-even pressure through all 360degrees of the stroke. on good days, i can absolutely fly with out putting in barely any energy - or so it feels...
Good form and rotation is a separate concept then "spin" as far as cadence is related, i would agree completely that good from and rotation is clutch for riding fixed, or geared for that matter.