I biked to work on a dirt bike for many years and never hit this speed. Later I learned you are supposed to use an easy gear and pedal at a cadence of 60-90 rpm

I biked to work on a dirt bike for many years and never hit this speed. Later I learned you are supposed to use an easy gear and pedal at a cadence of 60-90 rpm, instead of a hard gear and pushing hard with each stroke, and hit it easily.