I find I can't spin very highly unless I've been riding for at least 10 minutes to warm up. After 20-30 minutes I can spin a lot higher consistently - it's very obvious to me when I do this because I can feel the differences in how my legs are behaving. As for actual cadence speed, I've no idea - I'd have to get hooked up to a machine or do some math once I bother to count the teeth on my roadie gearing.