SpeedBox 1.3 for Bosch (Smart System Gen.4 + Rim Magnet) - Qty: 10 pcs + 1 free, Package: BAG
SIMPLIFIED INSTALLATION
No need to find a suitable position for the Magnet Simulator
DESIGNED FOR MOTORS OF 4TH GENERATION:
Performance Line CX
Performance Line CX Race
Performance Line Speed
PROPERTIES:
Maximum speed: Unlimited (max 35 km/h recommended)
Display shows:
Real speed: No
Correct travelled distance: after countdown process
Activation/deactivation (do not perform while riding):
WALK function,
buttons - + - +
Indication: YES (3.5/2.5 km/h)
Compatible with:
E-bikes with valve magnet (Bosch Rim Magnet)
Not compatible with:
Standard magnet
ABS system
5th generation motors (BDU384Y)
Performance Line SX
SpeedBox App
Please check your e-bike type and motor space before purchasing the product
View the list of supported software versions
More
Product code: SB13_B_10+1pcs_BAG Shipping and Payment
E-bike tuning for Bosch Gen4 motor with Smart System + Rim Magnet
SpeedBox 1.3 for Bosch is a tuning chip that removes the speed limiter on your e-bike. With this chip you can ride faster and enjoy the full potential of your Bosch motor.
If you want to see correct speed and full riding data while riding, we recommend SpeedBox 1.3 B.Tuning for Bosch. Real values will be displayed in the SpeedBox App directly on your phone.
How does SpeedBox 1.3 for Bosch work?
After installation, activate the chip via your e-bike’s control unit. Use the WALK assist function (short press of the “-” button). The display will show 3.5 km/h (2.2 mph) and assistance will be unlocked up to 35 km/h. You can set your own speed limit up to 99 km/h, but we recommend not exceeding 35 km/h to minimize the risk of error codes.
To deactivate the tuning, briefly activate WALK assist again (short press of the “-” button). Your e-bike display will show 2.5 km/h (1.6 mph) and the speed limit will reset to 25 km/h. Your e-bike will then work the same as before the tuning installation.
SpeedBox also works on e-bikes without an enabled WALK assist function. In that case, you can activate/deactivate tuning by switching between two assistance modes twice, i.e., pressing - + - +.
You can set the maximum speed limit by switching the modes from TURBO three levels down and then three levels up: eMTB - TOUR+ - ECO - TOUR+ - eMTB - TURBO. The current speed limit will then be displayed. The maximum assistance speed can also be switched by briefly activating WALK assist or by turning the rear wheel 360°. The value of 2.5 km/h corresponds to a limit of 25 km/h, 3.0 to 30 km/h, 3.5 to 35 km/h, etc. The last displayed limit will be saved after 15 seconds of inactivity.
After finishing the ride, leave the bike on until a value of 0.0 km/h is displayed. During this process the remaining time will be shown. Then it is safe to turn off your bike. Do not remove the display to lock the e-bike until SpeedBox finishes the countdown.
Activate/deactivate the tuning before the ride (when the e-bike is standing still), not during riding!
Assembly
We use original connectors to ensure simple installation and correct connection. We have prepared detailed instructions and videos to make installation easy for you. Disassembly is just as easy. If you encounter any issues during installation or disassembly, do not hesitate to contact us.
If you plan to install SpeedBox on a brand-new bike, make sure you ride it for at least 10 km before activating the tuning.
Important
Connect the male–female connectors in the direction of the lock. Do not rotate the connectors during connection!

Manual
Detailed installation information you will find here
Warning
Please note that operating this type of modified electric bike on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of SpeedBox products. Electric bikes equipped with SpeedBox products are not allowed to be used on public roads, cycling paths and public places. They can be used exclusively on private property and entirely at one’s own risk. The use of SpeedBox may void the warranty of your e-bike.
We strongly recommend using other safety features and protective gear to prevent injuries.
We recommend not updating the firmware of your e-bike. Updating increases the risk of tuning detection. Please disable automatic updates in the eBike Flow App. Note that the warranty of SpeedBox products does not apply to malfunctions caused by updating the motor.
When stopping for a short time, to continue riding smoothly, we recommend keeping one foot on the pedal so that the countdown does not start. When stopping for a longer period of time, allow at least a partial countdown to take place. After a long ride, the countdown may take several minutes. Do not remove the display if the countdown has not finished.
We recommend not exceeding a speed of 35 km/h.
View the list of supported software versions:
Click on the image below to enlarge the compatibility table.
| Bosch Motor | |
|---|---|
| Bluetooth/ SpeedBox App | NO |




