The speed difference between an electric bicycle (e-bike) and a conventional one (regular bike) can vary depending on several factors, including the specific models of both the e-bike and regular bike, the rider's weight, terrain, weather conditions, and the level of assistance provided by the e-bike's motor.
Generally, e-bikes can provide assistance to the rider, which allows them to achieve higher speeds with less effort compared to a regular bike. On flat terrain, e-bikes can easily reach speeds of 15 to 28 miles per hour (24 to 45 kilometers per hour) under electric assistance, and some models may even go faster.
However, it's important to note that most countries and regions have laws and regulations that limit the maximum speed of e-bikes when the motor is engaged. In many places, the maximum legal speed for e-bikes with pedal assistance is often capped at 20 to 28 miles per hour (32 to 45 kilometers per hour). Beyond these speeds, the e-bike's motor assistance might be limited or deactivated, making it function like a regular bicycle.
For regular bikes, the speed largely depends on the rider's fitness and the terrain. On flat ground and with a reasonably fit rider, speeds of 12 to 20 miles per hour (19 to 32 kilometers per hour) are common.
Remember to always comply with local laws and regulations regarding e-bike usage and speed limits to ensure your safety and legal compliance.