Pedaling at a SLIGHTLY higher cadence to save your knees is easy -- shift down a gear.

Pedaling at some of the insane rpm's listed here is just to see what's possible. Personally, I hit 127 once on my bud's old roadie. Doubt I've topped 100 in the last 4-5 years. Not necessary.

Everyone has an ideal gear; the trick is finding it, and getting used to the immediate range around it, and forgetting about all these ethereal peaks and ranges of capability. It's about the RIDE.

K.I.S.S.