#1 SELLER
PREMIUM CUSTOMER SUPPORT
SHIPPING WORLDWIDE
LIFETIME WARRANTY
EASY TO INSTALL
UNDETECTABLE
Bafang SpeedBox 1.3 Tuning Derestrict Kit Dongle for 20-22 M300|M400|M420
Compatible with motors - Bafang Max Drive M300, M400, M420.
Compatible with motors - Bafang Max Drive M300, M400, M420
Unlock the full potential of your ebike!
- You will ride faster and experience the thrills of owning a derestricted ebike -you will love the difference!
- Install it effortlessly- quick plug-and-play connection - no setup required.
- Feel safe for your e-bike and warranty- it's safe for ebike and undetectable to keep your warranty safe!
Quick plug-and-play installation. No setup!
- Increase the speed limiter from original 16 mph (25km/h) to unlimited speed!
- Enable/disable when needed! Just press the LIGHT button.
- Get after-sales support from us and a lifetime warranty from Speedbox
The bike feels completely different once derestricted - it's just like a whole different bike! The rides are so much more fun now! Tuning kits are safe to your bike and every ebiker should have one installed! You will love riding your ebike with it - guaranteed!
Matt - Owner of Two Wheels Empire
Product details
What does this Tuning Kit do?
Basic tuning kit for e-bikes with Bafang motors.
SpeedBox 1.3 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.
How does Speedbox Work?
How does Speedbox 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]
SpeedBox 1.3 tuning kit can be activated on the e-bike’s control unit. After pressing the LIGHT
button, the active lights icon will be displayed shortly after which you will be able to ride at a
speed of 31mph (50 km/h). The chip is deactivated by pressing the LIGHT button again.
By attaching the Light cable for Bafang, you can use the SpeedBox and your lights at the same time.
Is this Speedbox the right tuning kit for my bike?
This tuning kit is compatible with motors:
- Bafang Max Drive M300
- Bafang Max Drive M400
- Bafang Max Drive M420
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 3 Pin connector, you would need Speedbox 1.2 for Bafang or Speedbox 1.2 B.Tuning for Bafang
How to install this tuning kit?
When connecting the SpeedBox tuning kit to an e-bike you will find connectors colored to make installation very simple. We have prepared detailed instructions and videos to make installation easy for you. Disassembly of our 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 PDF
https://cdn.shopify.com/s/files/1/0051/1515/0434/files/SB13_BT__BAF_manual.pdf?v=1670930403
Installation Guide Video
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
By attaching the Light cable for Bafang, you can use the SpeedBox and your lights at the same time.
Is this Speedbox the right tuning kit for my bike?
This tuning kit is compatible with motors:
- Bafang Max Drive M300
- Bafang Max Drive M400
- Bafang Max Drive M420
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 3 Pin connector, you would need Speedbox 1.2 for Bafang or Speedbox 1.2 B.Tuning for Bafang
How to install this tuning kit?
When connecting the SpeedBox tuning kit to an e-bike you will find connectors colored to make installation very simple. We have prepared detailed instructions and videos to make installation easy for you. Disassembly of our 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 PDF
https://cdn.shopify.com/s/files/1/0051/1515/0434/files/SB13_BT__BAF_manual.pdf?v=1670930403
Installation Guide Video
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