According to Better Triathlete, Class 1 electric bikes have a top speed assistance of 20 mph, while Class 2 electric bikes have a maximum motor-powered speed of 20 mph. However, some e-bikes have higher power output and can reach higher speeds, such as Stromer e-bikes which are capable of travelling at up to 45km/h. Juiced Bikes states that the maximum speed of an electric bike depends on many factors such as rider strength, tire pressure, wind, and ambient temperature. Therefore, to know the maximum speed of your electric bike, you should consult the manufacturer’s specifications or contact the manufacturer directly. (sources: [Better Triathlete](https://bettertriathlete.com/ebikes/how-fast-electric-bike-speed-go/), [Cyclingnews](https://www.cyclingnews.com/features/how-fast-is-an-electric-bike/), [Juiced Bikes](https://www.juicedbikes.com/pages/what-it-is-the-top-speed))
An electric bike’s maximum speed heavily depends on the traffic rules of a prior country.
The most common top speed of a regular electric bike is up to twenty miles per hour. Fast electric bikes speed is twenty-eight miles per hour.
