SpeedBox 1.1 for Bafang 2020 (4 pin connector) M300, M400, M420
TYPE: Bafang
VENDOR: Speedbox
SpeedBox 1.1 for Bafang 2020 e-bikes
With this tuning tool, you can remove the 25 km/h limit and raise the speed limit significantly. This allows the Bafang motor to finally unfold its full potential. The result is a significant increase in speed, making the riding experience much more dynamic.
The SpeedBox 1.1 is a tuning module that must be permanently installed in the motor housing. You need access to the connectors of the engine for the connection. Only colour-coded original connectors are used for the installation, so that the installation is uncomplicated. Since no destructive changes are made to the e-bike during installation, the original condition of the e-bike can be restored without any problems. To do this, simply remove the module again.
Neither a PC nor a smartphone are required to set up the SpeedBox 1.1 - simply install it and get started! Tuning is activated simply by pressing the light button (a short appearance of the light symbol in the display indicates that tuning has been activated). Tuning can also be switched off in the same way. This way you can decide whether you want to use the tuning or not.
When the tuning is activated, the e-bike speedometer will only display half of the real values (current speed, riding time, etc.). This problem can be solved by using GPS-capable additional devices such as smartphones or bike computers that can display the real values.
Important note: If you install the SpeedBox 1.1 in a brand new e-bike, you must first ride the bike for at least 1 km before activating the tuning for the first time.
SpeedBox 1.1 for Bafang 2020 - Facts at a glance
-Removal of the 25 km/h speed limit
-Maximum speed is increased significantly (real achievable speed depends on cadence)
-Activation / deactivation via light button at the e-bike
-Display indication: Halved values
-Suitable for private installation at home
-Developed and manufactured in the Czech Republic
SpeedBox 1.1 for Bafang 2020 - Compatibility
-Compatible with Bafang Max Drive M300, M400, M420 e-bike drive systems
-Compatible with models from 2020
-Not compatible with 2016-2019 models
-Not compatible with Cortina and QWIC eBikes
-Not compatible with the SpeedBox app
Tip: If you have a Bafang Max Drive M300 / M400 drive from model years 2016 - 2019, you need the previous model, the "SpeedBox 1.0 for Bafang".
Delivery time, Shipping costs, Minimum order value und Payment methods:
Delivery time
Delivery time is 1-8 business days within Germany. Postal delivery time outside Germany may take longer.
Shipping area
We ship to Belgium, Bulgaria, Denmark, Estonia, Finland, Germany, Greece, Ireland, Iceland, Italy, Croatia, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Austria, Poland, Portugal, Romania, Sweden, Slovakia, Slovenia, Spain, Czech Republic, Hungary, Cyprus.
For shipping to Germany please use our german shop.
For a solution to Switzerland and Liechtenstein please see here.
We do not ship to the USA, France, Canada (including all overseas territories) and generally outside the EU.
Shipping costs
The shipping costs for Germany are 3,50 Euro. The shipping costs are waived from an order value of 180 Euro. For countries within the EU the shipping costs are 9,90 Euro. The shipping costs are waived from an order value of 300 Euro. We ask you to cover the cost of any return shipment yourself. Please note that customs fees may apply in third countries outside the European Union.
Minimum order value
The minimum order value is 25 Euro. Only from this amount you can use prepayment or PayPal and bank transfer as payment methods.
Maximum order value
The maximum order value for orders outside the EU is 1.000 Euro. The maximum order value within the EU is 12.500 Euro.
Payment in advance bank transfer
Please transfer the total amount with your order number to our account which you received in the confirmation email. Please note that bank transfers within Germany can take up to three working days. Transfers from abroad, especially from Austria and Switzerland, usually arrive very quickly. From other countries, transfers can take a little longer on average.
Payment in advance Paypal
At the end of the order process you will be redirected to the page of Paypal. There you can initiate your payment. As soon as the Paypal transaction is completed, the status of your order will change in the store. The goods will then be shipped as soon as possible.
Comparison of e-bike tuning products
Type |
Software | (Module) Software (Controller) |
Box | Module | Module | Module | Module | (Kit) Module / Sensor |
(Kit) Module / Dongle |
Dongle |
| Range of functions | ***** | ***** | * | ***** | **** | *** | *** | *** | *** / ** | * |
Easy installation of the tuning |
***** | ***** | **** | ** | ** | ** | ** | ** / * | ** / * | * |
Invisible after installation |
***** | ***** | * | ***** | ***** | ***** | ***** | ***** | ***** / **** | **** |
Switching on / off while riding |
* Gerät |
***** Gerät, Display |
* Box |
***** App, Display |
***** Display |
***** Display |
***** (App), Display |
*** Display, Magnet |
***** / **** Display / Dongle |
**** Dongle, (Licht) |
No more tuning Module at the bike |
***** | ***** | ***** | * | * | * | * | * | * / **** | **** |
Invisible dismantling |
***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** / *** | *** |
Easy dismantling |
***** | ***** | ***** | ** | ** | ** | ** | ** / * | ** / * | * |
Correct display of km/h |
***** Display |
***** Display |
* | ***** Display, App |
***** Display |
***** Display |
***** Display, App |
* | **** Display |
* |
Dethrottling |
***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
Reducing |
* | ***** | * | ***** | ***** | ***** | ***** | * | * | * |
Price range in euros |
169 to 209 |
189 to 299 | 149 to 154 | 219 to 239 |
159 to 179 | 139 to 259 |
139 to 309 |
89 to 199 |
89 to 209 |
139 to 159 |
Important: Tuning measures on e-bikes and e-scooters mean that they are no longer permitted for use on public roads. Legally permissible use is therefore only possible on private property or - if permitted - in competitions. Driving an e-bike or e-scooter modified by tuning measures on public roads can lead to criminal liability for driving without a license as well as driving without insurance coverage. Tuning measures on the e-bike and e-scooter can lead to a loss of warranty rights and manufacturer warranties. In addition, tuning measures can lead to a loss of insurance coverage and accident victim assistance benefits in the event of accidents. The e-bike (or e-scooter) modified by tuning measures is exposed to an additional load due to the higher speed, which can lead to safety risks.
