As explained in Part 1 of this series (SW May 2021), stroke rate and stroke length typically vary inversely. When a swimmer increases stroke rate, he/she usually decreases stroke length. When a ...
Years ago, the choice was clear: When it came to 2 stroke vs 4 stroke outboard motors, 2 stroke won every time. Two stroke motors offered a better power-to-weight ratio, were cheaper to manufacture, ...