My eBike is very fast when it is freshly charged and starting the ride. In fact, it's so fast that I can barely keep up with it when I'm pedaling. I really need to crank pretty fast just to act as if I'm actually adding some power to the ride! In an effort to reduce my cadence, I've just bought a larger crankset for my bike. It's the Shimano Tiagra 30-42-52 crankset. This should allow me to pedal at a more normal tempo when going fast. My current crankset tops out at 48T.