The smallest pit bikes, such as a 50cc can go about 25 mph (or less if they've got a limiter), even though the speediest products can go sixty+ mph. The best pace mostly depends upon how effective the engine is and what the transmission and gearing are set up for. https://zanekuchn.blogproducer.com/45499610/helping-the-others-realize-the-advantages-of-electric-unicycles