Electric bikes, often called e-bikes, look similar to traditional bicycles but include an electric motor that assists your pedalling. In the UK, legal electric bikes are designed to support—not replace—human effort, making them accessible, efficient, and easy to use for everyday riding.
How an Electric Bike Works
An electric bike uses a pedal-assist system. When you start pedalling, sensors detect movement and activate the motor to provide assistance. The harder you pedal, the more support the system delivers (depending on sensor type).
UK-legal e-bikes:
- Maximum assisted speed: 15.5 mph
- Motor power: 250 watts
- No throttle-only operation (with limited exceptions)
Key Components Explained
- Motor: Provides assistance (hub or mid-drive)
- Battery: Powers the motor
- Controller: Manages assistance levels
- Sensors: Detect pedalling effort
Who Are Electric Bikes For?
Electric bikes suit commuters, leisure riders, older cyclists, and anyone who wants to ride further with less strain. They are especially useful in hilly areas or for longer journeys.
Recommended reading:
- Are Electric Bikes Legal in the UK?
- Types of Electric Bikes Explained
Recommended options:
Examples of UK-legal electric bikes are available here.