Originally Posted by Buzzard
What's your pedaling cadence at 30mph? (strokes per minute) and what gear are you running in? That's got to be some fast pedaling.
My cadence at 30 mph is about 90 rpm. 80 rpm is optimal for a good cyclist, but 90 works if you don't have to apply a lot of pressure on the pedal. That's why I tend to keep speed just below 30 mph - which is really fast for a bike!
My chainwheel now has 48 teeth. I replaced the 42 teeth chainwheel that the bike originally came with. The freewheel has 11 teeth. I replaced the original 12 teeth freewheel. I constantly ride in the highest gear (48/11) except when starting from a full stop or going up a steep hill.