Thanks to all the "leggy" guys who responded. I've got a 34" inseam myself. I've been able to spin at 90+ rpm for several minutes at a time on the flat on my SS (175 cranks, a little over 75 gear inches). I have been able to hit 110 to 120, even 130, but I can't do it for very long. Of course the terrain and lack of gears has a lot to do with determining my cadence on a longer ride. So now...

I just got a geared road bike (also 175 cranks), so I should be able to keep my cadence pretty steady, right?. Well, I can pretty much. But...

On Sunday I went for a ride, 16 mile loop. I pushed myself somewhat to see what I could do and ended up with a 18.2 mph average...I've done better, but that's not bad for me. Today I did a 12 mile loop, specifically trying to cadence at around 90rpm. I dont' have a cadence computer, but I have a pretty good sense of meter and was using a couple of songs in my head. In reality, I was probably between 80 and 90 generally, but fell off of that on the steep hills. My average while trying to maintain a higher cadence was 17.5, and that was a shorter ride than Sunday. Both rides contained no stops, except for brief ones to wait for traffic.

My question to you spinning gurus is this: If I continue to concentrate on cadence rather than performance (speed) will I eventually get the performance as a benefit from spinning at higher rpm?

Thanks for any responses...