SpeedBox 3.0 for Bafang (3 pin connector)

5.0 · 1 review

Derestrict your e-bike to reach speeds up to 31mph (50km/h)!

Regular price 204.00 USD 194.00 USD-5%No Tax upon delivery in the USA
You can save money when buying more than one product of this type!
Motor: Bafang M300 / M400 3-pin

Compatible with motors: Bafang Max Drive M300, Bafang Max Drive M400

  • The active tuning kit makes the speedometer show a slower speed
  • Tuning kit removes all speed limits. Possible to set a preferred range.
  • Once fitted, tuning kit needs to be activated and can be switched OFF/ON at will.
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    Important legal note!
    • FREE DELIVERY IN MOST REGIONS
    • LIFETIME WARRANTY
    • EASY TO INSTALL

    What does this Tuning Kit do?

    Basic tuning kit for e-bikes with Bafang motors.

    SpeedBox 3.0 enables you to double the speed limit of an e-bike from the original 16 mph (25 km/h) to 31 mph (50 km/h). When in use, the actual speed will appear on your display up to 14mph (23 km/h). The display also shows your trip and other aspects of your ride.

    Note: The Speedbox App is an application specially designed for Speedbox B. Tuning products only. With a non-Bluetooth Speedbox product like this one, the Speedbox App is unavailable.

    SpeedBox 3.0 B.Tuning for Bafang (3 pin connector)

    Achievable speed

    Calculate your speed

    The achievable speed mostly depends on the eBike model. Enter your own values:

    Speed 37.5 km/h

    Theoretical value from cadence and gearing only. Your real speed also depends on the motor, the tuning kit, the rider and the terrain.

    Speed = cadence [rpm] × wheel circumference [mm] × front chainring teeth ÷ rear sprocket teeth × 60 [min/h] ÷ 1,000,000 [mm/km]

    Which Speedbox Tuning Kit do I need?

    This tuning kit is compatible with motors:

    • Bafang Max Drive M300
    • Bafang Max Drive M400

    In case of updating the software of your e-bike, uninstall SpeedBox from the e-bike first, update the software and reinstall SpeedBox.

    If your ebike is with 4 Pin connector, you would need Speedbox 3.1 Bafang (4 pin connector) or SpeedBox 3.1 B.Tuning for Bafang

    How to install this Tuning kit?

    We use original connectors for the production of SpeedBox chips ensuring that the installation process is very simple and the chip is connected properly. We have also prepared detailed instructions and videos to make installation easy for you. Disassembly of the tuning chip is just as easy. If you have any troubles with installation or disassembly, do not hesitate to contact us.

    If you are planning to install SpeedBox on a brand-new bike, make sure you ride it for at least 0.6 miles (1 km) before the chip is activated.

    Installation Guide:

    Press the LIGHT button, or the + - + - combination on the display, to turn the tuning on. The display shows 99 km/h (62 mph). Press the LIGHT button or + - + - again to turn it off; the display shows 25 km/h (16 mph) and the 25 km/h limit is back.

    Other tuning kits for Bafang M300 / M400 3-pin motors

    This kit SpeedBox 3.0 for Bafang (3 pin connector) SpeedBox 3.0 B.Tuning for Bafang (3 pin connector) SpeedBox 1.2 B.Tuning for Bafang (3 pin connector) SpeedBox 1.2 Tuning Kit for Bafang (3 pin connector)
    Price 194.00 USD302.00 USD302.00 USD194.00 USD
    Speed data DOESN'T SHOW REAL SPEED DATADOESN'T SHOW REAL SPEED DATADOESN'T SHOW REAL SPEED DATADOESN'T SHOW REAL SPEED DATA
    Max speed UNLIMITED MAX SPEED SETTINGUNLIMITED MAX SPEED SETTINGLIMITED MAX SPEED SETTINGLIMITED MAX SPEED SETTING
    Activation ON/OFF TUNING ACTIVATIONON/OFF TUNING ACTIVATIONON/OFF TUNING ACTIVATIONON/OFF TUNING ACTIVATION
    Warranty LIFETIME WARRANTYLIFETIME WARRANTYLIFETIME WARRANTYLIFETIME WARRANTY
    View kitView kitView kit

    FAQ & legal

    How does SpeedBox 3.0 work?
    The tuning kit manipulates the speed signal without altering the motor's power relative to pedaling speed. This guarantees a smooth motor control without speed limit interruptions. Depending on a tuning kit, some determine when assistance stops, while others remove the restriction entirely for continuous support. However, the achievable speed mostly depends on the eBike model. Achievable speed can be calculated using a simple formula:

    Speed = Cadence [rpm] * Wheel circumference [mm] * Front Chainring Teeth / Rear Chainring Teeth * 60 [min/h] / 1.000.000 [mm/km]

    The tuning kit can be activated directly on your bike’s display. After pressing the LIGHT button or ↑↓↑↓, a value of 99 km/h (62 mph) is displayed and from now on you will be able to ride at an unlimited speed.

    To deactivate the tuning kit, press the LIGHT button or ↑↓↑↓ again. The value of 25 km/h (16 mph) will appear on your display and the speed limit will reset to 25 km/h. Your e-bike will then work the same as before installation of the chip.

    You can set the maximum speed of an electric assistance by changing modes by switching modes three levels down and then three levels up. An actual speed limit will be displayed after that. The maximum speed of an electric assistance can be switched by pressing LIGHT button shortly or by turning the rear wheel 360°. The last displayed limit will be saved after 5 seconds of inactivity.
    Important legal note!
    Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use SpeedBox products. Electric bikes equipped with SpeedBox products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with SpeedBox products can be used exclusively on private property and entirely at one’s own risk.

    The use of SpeedBox may void the warranty of your ebike.

    We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

    SpeedBox Products are thoroughly tested and we stand by their quality. SpeedBox provide Life Long warranty to all their Products!

    If You have any questions, please do not hesitate to contact us. Thank you for looking! Two Wheels Empire Team
    eBike Software Updates

    Warranty does not cover damage resulting from eBike software updates. Remove the tuning kit before updating the software. Check with us first to ensure the kit is compatible with your updated eBike. We cannot guarantee that the kit will function the same after updates. Please exercise caution. If your Speedbox tuning kit needs updating due to updated eBike software, please contact us at hi@twowheelsempire.com. Preliminary costs are 49£ + shipping costs.

    Product safety information (GPSR)

    Manufacturer Information:

    Ebike Electronic s.r.o.
    Rybna 716/24
    Praha
    1110 00
    Czech Republic
    j.voldan@speedbox-tuning.com
    +420 702 042 874
    Life Time warranty by Manufacturer

    Rider reviews

    What riders say about this kit

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