Speed limiter: deactivated
Display shows: actual values
Compatible with motors: Active Line, Active Line Plus, Performance Line and Performance Line CX Line including motors of the 4th generation.
Activation: by pressing WALK / + - + -
Compatible with SpeedBox App: NO

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Product code: SB3_B_1pcs_BOX

164 € incl. VAT

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A smart chip of the third generation with an option to set a speed limit of an e-bike.

SpeedBox 3.0 tuning chip enables to select speed limit of your own choice. After the chip is installed, your e-bike’s display will show real data, such as maximum and average speeds, daily mileage and cruising range.

How does SpeedBox 3.0 work?

The tuning kit can be activated directly on your bike’s display.  After pressing the WALK button, a value of 9.9 km/h (6.2 mph) is displayed and from now on you will be able to ride at a speed of 40 km/h, 50 km/h and even more than 60 km/h.

To deactivate the tuning kit, press the WALK button again. The value of 2.5 km/h (1.6 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.

SpeedBox was also designed for e-bikes that do not have a classic control unit with Walk button. In this case you can just use the combination of + - + -  buttons and SpeedBox will be activated. You can easily deactivate SpeedBox in the same way.

You can set the maximum speed of an electric assistance by changing modes: Turbo - Sport - Tour - Eco - Tour - Sport - Turbo. An actual speed limit will be displayed after that. The maximum speed of an electric assistance can be switched by pressing WALK button shortly or by turning the rear wheel 360°. The value of 1,5 km/h on the display corresponds with the limit of 15 km/h, 2 km/h corresponds with the limit of 20 km/h, 2,5 corresponds with 25 km/h, 3,0 corresponds with 30 km/h, 9,9 corresponds with 99 km/h etc. The last displayed limit will be saved after 5 seconds of inactivity.

When using SpeedBox 3.0 with Bosch motors of the 4th generation (produced in 2020 or later) it is necessary to leave the bike on after finishing the ride until a value of 0.0 km/h is displayed. During this process the remaining time will be displayed in minutes. Then it is safe to turn off your bike and you can start looking forward to your next trip.


When connecting the SpeedBox chip 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 1 km before the chip is activated.


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.



Thank you Jiří,,

But what about the message from Andrew Simpson on 15. 01. 2020, 10:06

"Hello. I have installed a speedbox chip 3.0 on my Activeline plus bike (purchased bike in January 2020, so not sure if it is Gen3 or 4) and I have received almost immediately a 503 error and have no speed displayed. "

Jiří Voldán (Sales Manager)Administrator |

Dear Julien, Andrew installed his SpeedBox wrong way. This leads to 503. Problem was solved when customer installed SpeedBox into proper connectors.


Hi Jiří,
I'm eager to get the speedbox 3 on my Bosch CX 2020 gen4 but I'm reading less than two weeks old comments mentioning issues and errors on gen4 motors. I'm a bit afraid of installing it.

Jiří Voldán (Sales Manager)Administrator |

If you install SeedBox 2.0 for Bosch to Gen4, there will be an error due to incompatibility. If you install SpeedBox 3.0 for Bosch to Gen4, there won't be any error. I guarantee you'll be satisfied.


Hi guys, when do you think the speedbox 3 will be updated, solving the errors which appeared so far? Thanks a lot,

Jiří Voldán (Sales Manager)Administrator |

Hello Cornel. Sorry, which errors? We have no negative feedback regarding SpeedBox 3.0. This SpeedBox is available 2 weeks only. Whatever you have read with date older than 2 weeks is absolutely irrelevant. SpeedBox 3.0 is a prevention against limp mode and 504 error code if that's what you mean. No reason to be worried.

Craig Perera

Do I take it from the lack of response that this device has not been tested over the long distance ?

Contact us!