SpeedBox 1.2 for Shimano – +E-Tube Port
The SpeedBox 1.2 is a completely redesigned tuning chip for compatible Shimano e-bike motors.
With new hardware, firmware and an updated design, it removes the standard 25 km/h motor assistance limit and allows assistance to continue beyond the factory restriction.
This is the non-Bluetooth version and is not compatible with the SpeedBox Connect app.
Do I Need the +E-Tube Port Version?
The standard SpeedBox 1.2 requires one free E-Tube port on the motor.
Choose the +E-Tube Port version when your e-bike does not have a spare E-Tube port available.
This is usually required for e-bikes fitted with:
Shimano E5000 motors
Shimano Di2 electronic gear shifting
A Satellite System ON/OFF Switch
Shimano EW-SW100 or EW-SW300 switches
All e-bikes fitted with a Shimano E5000 motor will normally require the +E-Tube Port version.
If your motor has a free E-Tube port, choose the standard SpeedBox 1.2 instead.
Key Features
Removes the 25 km/h Assistance Limit
When activated, the SpeedBox suppresses the factory speed limiter and allows motor assistance to continue beyond 25 km/h.
Controlled Through the Light Function
The SpeedBox is controlled using the e-bike’s LIGHT button:
Lights off: SpeedBox activated
Lights on: SpeedBox deactivated
To keep tuning permanently active regardless of the light setting, connect the SpeedBox fork terminal to the screw terminal marked “-”.
If the light function is not activated on your e-bike, the SpeedBox will remain active at all times.
Redesigned Hardware and Firmware
The SpeedBox 1.2 has been redesigned from the ground up with new internal hardware, updated firmware and a new construction developed for compatible Shimano systems.
Straightforward Installation
SpeedBox uses original-style connectors to help provide a secure and reliable connection.
Detailed instructions and installation videos are available to guide you through both installation and removal.
Compatible Shimano Motors
Shimano Steps E8000
Shimano Steps E7000
Shimano Steps E6100
Shimano Steps E5000
Not Compatible With
SpeedBox Connect
Bluetooth features
SpeedBox smartphone app functions
For Bluetooth connectivity and accurate riding information on your phone, choose the SpeedBox 1.2 B.Tuning for Shimano.
Technical Specifications
Activation and deactivation:
Through the e-bike’s LIGHT function
Maximum assistance speed:
Unlimited
Factory speed limiter:
Deactivated while tuning is active
Displayed speed:
Accurate up to approximately 23 km/h
Bluetooth:
No
SpeedBox Connect compatibility:
No
Minimum distance before use on a new e-bike:
10 km
Speed Display Information
The e-bike display shows accurate speed information up to approximately 23 km/h.
Above 23 km/h, the display will no longer show the correct real-time speed.
To view accurate speed and full riding data at higher speeds, choose the Bluetooth-enabled SpeedBox 1.2 B.Tuning for Shimano, which displays this information through the SpeedBox Connect app.
Installation on a New E-Bike
Before activating the SpeedBox on a brand-new e-bike, ride the bike for at least 10 km.
This allows the motor and electronic system to complete their initial setup.
Important Software Information
We do not recommend updating the Shimano e-bike software while the SpeedBox is installed.
Automatic software updates should be disabled where possible, as future manufacturer updates may affect compatibility or operation.
Important Legal Notice
Installing this product may cause your e-bike to no longer meet the legal definition of an electrically assisted pedal cycle.
A modified e-bike must not be used on UK public roads, cycle paths or other public places unless it has been correctly registered, insured and approved for that use.
This product is intended for use on private land with the landowner’s permission, where legally permitted. The rider is responsible for complying with all applicable laws and regulations.