The smallest pit bikes, like a 50cc can go about 25 mph (or a lot less if they have a limiter), whilst the fastest models can go sixty+ mph. The top pace mostly relies on how powerful the motor is and just what the transmission and gearing are setup for. https://tituskxipw.fireblogz.com/69228850/the-fact-about-are-electric-unicycles-legal-in-uk-that-no-one-is-suggesting