Speed limiter: deactivated
Display shows: actual values
Compatible with displays: KIOX, INTUVIA, NYON, PURION and COBI
Activation: by pressing WALK / + - + -
Compatible with SpeedBox App: NO
This product in not compatible with Bosch 2020 motors!

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Product code: SB2_B_10+1pcs_BAG

1 440 € incl. VAT

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Reliable second generation tuning chip for e-bikes with Bosch motors.

SpeedBox 2.0 tuning chip enables you to suppress the speed limiter on your electric bike. 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 2.0 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.


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.

Download manual
View the correct wire connection



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.

Facile à monter
Vitesse réel au tableau de bord
Peut être commandé avec la commande d'origine en roulant

Lenteur de livraison du produit

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Veloce da installare e molto semplice da attivare

Al momento nessuna critica

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Prompt shipping and easy tracking to the US via Czech Post. Easy installation following video (pay attention to speed sensor vs taillight plug!). ... More

none so far.

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WOW!!! Amazing! I absolutely love it! It works as promised!

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Un autre produit Tchèque parfait (l'autre c'est l'imprimante Prusa 3D !). Impossible de se tromper entre les différents connecteurs car ceux fournis s ... More


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It works exactly as described. Can hide it between the motor unit and the plastic shell instead of unscrewing the motor from the frame as described in ... More

Likely because of changing the button function on the thumb controller (while fiddling around with it): caused weird glitch with power mode, ... More

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easy install and best performance

shipping takes more than one week.

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good product, easy to install, very efficient
makes the bike more attractive
to be recommended to everyone

could surely be cheapest
to be discounted when purchase several units

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Works great and easy to install if you've got basic electrical experience!

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100 miles on the speedbox2 Gen3 Bosch and error 504 and limp mode. Disappointed that the Speedbox has been made useless by Boschs firmware

Jiří Voldán (Sales Manager)Administrator |

Please return SpeedBox back to your seller and ask for SpeedBox 3.0 instead. This will solve your problem.


Hi will this keep going into limp mode on my 19 Bosch’ and can Bosch tell it’s been fitted
Is the 3 a better bet

Jiří Voldán (Sales Manager)Administrator |

Definitely recommend you SpeedBox 3.0 for Bosch. This is only way how to succesfully avoid the limp mode.


Can't get the unit installed. Have a Bosch Perforance CX on a Yuba Spicy Curry bike. It's the same motor featured in your 2nd install video for Bosch (

Can connect the 4 pin connector just fine but the 2 pin connector will not fit. looking at the connects for the Speed Box 2.0, it is different than the 2 pin connector from the Bosch motor.

Need help!

Graham Lewis

I purchased speed box 2 for my 2019 trek powerfly with Bosch performance cx line,connecting the cables was no issue ,and when when pressing walk mode I get the 6 mph on the display ,but when I try and pedal I get error code 503 and no drive from the motor.Bike runs fine again when the box is removed .Checked magnet position and that is also correct.

Jiří Voldán (Sales Manager)Administrator |

Please try to uninstall SpeedBox and install it back again. Bad contact between connectors can cause 503 error code.

John Degrand

I tried to install the Bosch Speedbox 2, and it went well to plug in the Big 4 pin header. But when I then tried to plug in the small 2 pin connector from the speedbox into my Bosch Performance Line Gen3 engine, it did not fit.
When I then compared the two headers, I saw that the original header from the Bosch engine was slightly different from the one in the speedbox. The speedbox one had 2 notches, the Bosch original one only 1 notch.

Did I have to buy the speedbox 3? Does that one have a different header for the 2 pin connector?

Jiří Voldán (Sales Manager)Administrator |

Hi John, please send me some photos to, I'll help you through this.

Contact us!