electric bike Remove speed limit

How To Unlock Your E-Bike: Remove The Speed Limiter

E-bikes offer an exhilarating way to explore, but factory-set speed limits can leave riders yearning for more. Discover how to break free from those limitations and tap into your e-bike’s true potential – where speed and power know no bounds.

Important Note: While unlocking can be tempting for those seeking more speed, it’s crucial to remember that it can void your warranty and may not be legal in all areas. Always research the laws and regulations in your region before attempting to unlock your e-bike. Additionally, be aware that unlocking can put extra strain on your bike’s components and may affect its overall lifespan.

Behind the Scenes: Overriding Speed Limits

E-bike unlocking, also known as de-restricting or tuning, is the process of removing or modifying the speed limiter that manufacturers impose on their electric bikes. This limiter is a software or hardware feature that restricts the motor’s power output once a certain speed is reached, typically around 25 km/h (15.5 mph) in Europe or 20 mph (32 km/h) in the US.

The Mechanics of Unlocking

  • Speed Sensor Manipulation: Most e-bikes use a speed sensor, often located on the rear wheel, to monitor how fast the bike is traveling. Unlocking methods can involve altering this sensor’s readings by relocating a magnet or using an electronic device to bypass it. This tricks the bike’s controller into believing the bike is moving slower than it actually is, allowing the motor to continue providing assistance beyond the speed limit.

  • Controller Modification: Some unlocking techniques involve directly altering the e-bike’s electronic controller, which governs the motor’s behavior. This might include changing software settings or installing a tuning chip that overrides the factory-set speed limit.

Variations Depending on Motor Type

  • Hub Motors: These motors, located within the wheel hub, often have simpler unlocking methods, such as magnet relocation or using tuning dongles that plug into the motor’s wiring.

  • Mid-Drive Motors: These motors, located near the pedals, can be more complex to unlock, often requiring specialized software or hardware modifications.

Weighing the Risks & Rewards: Considerations Before Unlocking Your E-Bike

unlock speed electric bike

The allure of unlocking your e-bike for higher speeds is undeniable, especially if you’re seeking thrills beyond the standard 25 km/h (15.5 mph) limit in France. However, it’s crucial to make an informed decision by weighing the potential benefits against the risks and drawbacks.

Potential Benefits

  • Increased Speed: The most obvious advantage is the ability to reach higher speeds, which can be beneficial for commuting or recreational riding on private property.
  • Enhanced Performance: Unlocking can also improve acceleration and hill-climbing ability.

Important Considerations

  • Legality: In France and many other regions, exceeding the legal speed limit for e-bikes can result in fines, penalties, and potential legal issues in case of accidents. Be sure to research and understand the laws in your area.
  • Safety: Higher speeds demand greater rider skill and awareness. The increased power can make the bike more difficult to control, especially in unexpected situations. Be honest about your abilities and experience before unlocking.
  • Battery Life: Higher speeds drain the battery faster, potentially leaving you with a shorter range than expected. Plan your rides accordingly and consider carrying a charger or spare battery.
  • Warranty: Modifying your e-bike to remove the speed limiter will likely void the manufacturer’s warranty. Be prepared to take on responsibility for any repairs or maintenance issues that arise.
  • Component Wear & Tear: Riding at higher speeds can accelerate wear on various bike components, such as the motor, brakes, and tires. Factor in potential maintenance costs.

Alternative Solutions

If you’re looking for more speed, consider these options before unlocking:

  • Upgrade to a Speed Pedelec: These e-bikes are designed for higher speeds (up to 45 km/h) and are legal with proper registration and licensing in some areas.
  • Choose a More Powerful E-Bike: Some e-bikes offer higher power output and speed within legal limits.

Two Common Unlocking Speed Limiter Methods

E-bikes have soared in popularity, and many riders are eager to tap into their full potential. One way to do this is by removing the speed limiter – a process also known as unlocking, tuning, or de-restricting. This allows the motor to deliver more power and reach higher speeds.

Method 1: Rear Wheel Magnet Relocation

This technique involves altering the interaction between the speed sensor and the e-bike’s controller. By moving the magnet on the rear wheel, you can trick the system into calculating a lower speed.

  • Locate: The magnet is usually a small, cylindrical object attached to a spoke on the rear wheel. The sensor is typically mounted on the bike frame near the magnet.
  • Reposition: Carefully remove the magnet from the spoke. You may need a small tool or a flathead screwdriver. Then, reattach the magnet to the crank arm or pedal bracket, ensuring it’s secure.
  • Adjust Sensor: If needed, you may need to slightly adjust the position of the speed sensor so that it aligns with the magnet in its new location. The goal is to create enough distance between the magnet and sensor that it doesn’t trigger at the original speed limit.


  • Model Compatibility: This method may not work for all e-bikes, especially newer models that have more sophisticated speed sensing systems.
  • Accuracy: The speed reading on your display may no longer be accurate after relocating the magnet.
  • Reversibility: This is a fairly easy modification to reverse if needed.

Method 2: Adjustment Tool Kit

This is a more technical method that often involves installing a small electronic device that overrides the factory speed limit. Popular options include the SpeedBox for Bafang motors, which offers a range of features and can be controlled via a smartphone app.

  1. Obtain Kit: Many e-bike manufacturers or third-party suppliers offer these kits. Make sure you choose one that is specifically designed for your electric bike model.
  2. Install: Installation can vary in complexity. Some kits plug directly into existing connectors, while others may require splicing wires or adjusting settings on the e-bike’s display. If you’re not comfortable with electronics, it’s recommended to have a professional install the kit.
  3. Activate/Deactivate: Most kits come with a simple way to activate or deactivate the speed limit override. This can be done through a button combination on the display, a separate switch, or even a smartphone app.


  • Cost: These kits can be relatively expensive.
  • Reliability: When installed correctly, these kits are often more reliable and provide a more consistent unlocking experience than the magnet relocation method.
  • Warranty: Using a tuning kit may void your e-bike’s warranty, so proceed with caution.

Maintaining Performance & Safety: Optimizing Your Unlocked E-Bike

Unlocking your e-bike’s motor isn’t just about removing a speed limit; it’s about adapting your bike to handle the increased performance safely and efficiently. Higher speeds and power put extra stress on components, so consider these optimizations below.

Drivetrain Upgrades

  • Larger Chainring (More Teeth): With higher speeds comes faster pedaling. A larger chainring makes it easier to maintain an efficient cadence and reduces strain on the chain.
  • Longer Chain: A larger chainring requires a longer chain to accommodate the increased circumference.
  • Chain Maintenance: Regular cleaning and lubrication will help prolong the life of your chain and ensure smooth shifting.

Suspension & Handling

  • Fork Inspection/Upgrade: Your fork absorbs more impact at higher speeds. Inspect it for wear and consider upgrading to a stronger model if necessary.
  • Tire Pressure: Slightly increase your tire pressure to reduce rolling resistance and improve stability.
  • Brake Check: Ensure your brakes are in top condition to handle faster stopping. Consider upgrading to models with better heat dissipation if you frequently ride at high speeds.

Battery Considerations

  • Increased Consumption: Higher speeds and power demand more energy from your battery, potentially reducing your overall range.
  • Battery Upgrade: If you want to maintain a similar range to your stock e-bike, consider investing in a higher-capacity battery.
  • Charging Habits: Optimize your charging habits to maximize battery life. Avoid fully depleting the battery and store it in a cool, dry place.

Additional Tips

  • Weight Reduction: Every pound counts! Consider lightweight components to offset the added weight of a larger battery, if applicable.
  • Regular Maintenance: Regularly inspect and maintain all components to ensure they’re in good working order and address any wear and tear promptly.

Beyond the Speed Limit: Making Your E-Bike Faster, Stronger, and Safer

Unlocking your e-bike’s potential requires more than just removing the speed limiter. Prioritize your safety and the longevity of your e-bike by investing in appropriate upgrades and maintaining your components meticulously. With these considerations, you’ll be well on your way to enjoying a faster, safer, and more exhilarating ride!

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