The speed of an electric bike can vary depending on various factors, including the power of the electric motor, the weight of the rider and the bike, the terrain, and the level of pedal assistance. In general, most electric bikes have a top speed of around 20 to 28 miles per hour (32 to 45 kilometers per hour) when using motor power alone, also known as throttle mode. However, it's important to note that the legal speed limits for electric bikes can vary by country and jurisdiction.
Many electric bikes are designed to provide assistance to the rider while pedaling, rather than solely relying on the motor power. This pedal-assist mode (commonly referred to as "e-bike mode" or "pedelec") can help riders maintain higher average speeds and easily reach speeds of 15 to 20 miles per hour (24 to 32 kilometers per hour) or more, depending on the level of assistance and the rider's effort.
It's worth mentioning that some high-performance electric bikes, often categorized as electric motorcycles or electric scooters, can achieve much higher speeds, exceeding 30 or 40 miles per hour (48 to 64 kilometers per hour) or even more. However, these faster models may be subject to additional regulations, licensing requirements, and restrictions in many jurisdictions. Always check the local laws and regulations regarding electric bikes in your specific area.