Electric bikes have become a widely embraced mode of transportation, offering a perfect balance between sustainability, convenience, and performance. However, many electric bikes come with a built-in speed limiter that restricts how fast the motor can assist. For most models sold in Europe, this limit is typically set to 25 km/h in order to comply with local traffic laws and to classify the vehicle as a bicycle rather than a moped. While this regulation is important for public road safety, some riders seek ways to remove the speed limiter for private or off-road use to unlock the full potential of their e-bike. This article explores how to remove the speed limiter on an electric bike, including legal considerations, methods, and the relevance to Electric e-bikes.
What is a Speed Limiter on an Electric Bike?
A speed limiter is an electronic restriction in the bike’s controller system. It stops motor assistance once the bike reaches a specific speed, usually:
- 25 km/h in the EU
- 32 km/h (20 mph) in the US
It ensures that the e-bike remains legally classified as a bicycle and doesn’t require a license or registration. When this limit is removed or overridden, the bike can exceed these speeds with motor support.
Why Remove the Speed Limiter?
Many riders consider removing the limiter to enhance performance, especially in settings where legal restrictions do not apply, such as on private tracks or off-road trails. By unlocking the motor’s full power, the bike can provide assistance at speeds well above the original factory limit. This results in a more dynamic and responsive ride, which is particularly appealing to thrill-seekers, advanced riders, or those who simply want to make the most out of their bike’s motor capacity. Some riders also find that on long-distance rural rides or hilly terrain, a speed-limited e-bike lacks the momentum needed to keep up with natural riding flow, making removal a tempting option. Still, the decision to remove the limiter should be made with awareness of the potential consequences.
Common reasons include:
- Unlocking full performance: Access higher speeds on trails or private roads.
- Improved riding flow: Maintain higher speeds in group rides or longer commutes.
- Enhanced fun: For thrill-seekers, speed makes the ride more exciting.
Legal and Safety Considerations
It’s important to understand that removing the speed limiter is often not legal for public road use. In many jurisdictions, modifying an e-bike to go beyond 25 km/h means it no longer meets the definition of a bicycle. This reclassification could mean the bike now requires insurance, a license plate, and even a driving license to operate. If you ride a modified e-bike on public roads without adhering to these regulations, you may face fines, confiscation of the bike, or even legal penalties. Furthermore, altering the limiter could also affect your insurance coverage, making you liable in the event of an accident.
From a safety perspective, most electric bikes are engineered with their maximum speed in mind. Removing the limiter could place additional strain on the brakes, tires, and motor, potentially causing premature wear or system failures. Always ensure that your bike is structurally and mechanically prepared to handle higher speeds if you decide to proceed with modifications.
Methods to Remove Speed Limiter on E-Bikes

There are several ways to remove or bypass the speed limiter. The right approach depends on the brand and model of the e-bike. Below are common techniques used by riders:
1. Using a Speed Tuning Kit
These plug-and-play devices alter how the controller reads speed data.
- Function: Tricks the sensor into displaying a lower speed.
- Result: Motor keeps providing power beyond 25 km/h.
- Pros: Easy to install and reversible.
- Cons: May void warranty or affect speed readings.
2. Modifying the Speed Sensor Magnet
This low-tech method involves moving the magnet on the wheel or sensor.
- How it works: The sensor gets incorrect data about wheel rotations.
- Pros: Cheap and simple.
- Cons: Reduces accuracy and may not work on all bikes.
3. Firmware Tuning (Advanced)
For tech-savvy users, firmware tuning allows in-depth controller changes.
- Process: Access the controller via a computer or diagnostic tool.
- Pros: Precise speed adjustments possible.
- Cons: Complex, risky, and may damage the controller.
Electric E-Bikes and Performance Customization
ENGWE electric bikes are recognized for their blend of power, endurance, and intelligent design. With robust models like the ENGWE X26 and EP-2 Pro, riders benefit from powerful motors, reliable batteries, and sturdy frames capable of handling diverse terrains. These bikes are shipped with factory-set speed limiters to ensure compliance with EU standards, making them fully legal for road use. However, for users intending to ride on private property or off-road routes, Electric bikes offer a solid platform for potential performance enhancement, including speed limiter removal.
What makes ENGWE particularly suitable for modification is their user-friendly design and accessibility of internal components. That said, the brand does not officially endorse tampering with limiters, and doing so could void your warranty or lead to technical issues if not handled correctly. If you’re considering such a modification, it’s best to consult a professional or experienced technician familiar with e-bike systems.
Conclusion
Learning how to remove the speed limiter on an electric bike can offer new levels of performance and excitement, especially for riders using their e-bikes on private land or in non-restricted environments. However, the decision to do so should be taken seriously, with full consideration of local laws, safety requirements, and manufacturer guidelines. E-bikes like those offered by ENGWE are designed to deliver optimal performance within legal parameters, but they also provide the technical foundation for those who wish to explore beyond those limits, responsibly and safely. Always research thoroughly, proceed cautiously, and ride smart.