sIMPLEk Stick for Bosch Gen4

TYPE: Bosch Gen1, Bosch Gen2, Bosch Gen3, Bosch Gen4


139,00 €

Payment & Shipment
Customer reviews

sIMPLEk Stick for Bosch - The tuning dongle with correct km/h display

The sIMPLEk Stick is a tuning dongle that allows you to remove the 25 km/h speed limit of Bosch e-bikes. This allows you to ride much faster with full motor support.

Please note that the sIMPLEk Stick is a do-it-yourself dongle. You will need to use a soldering iron to connect the supplied USB connector to the circuit board. However, the assembly is quite simple. Thanks to the supplied connection cable, you can attach the stick to a position of your choice on the e-bike - preferably directly on the handlebars.

To activate the tuning mode, you simply have to plug in the sIMPLEk stick (after installing the wiring) - and the 25 km/h speed limit of the motor assistance is lifted. Even when tuning is activated, the correct speed can still be read:

Up to 10 km/h, the speed is output 1:1. Above 10 km/h it is displayed via the second digit and the decimal place.

5.6 km/h -> 5.6 km/h

10.0 km/h -> 10 km/h

10.5 km/h -> 5 km/h

13.5 km/h -> 35 km/h

Maximum speed and distance travelled / total distance are also correctly indicated (but only after a little over 1 minute at standstill).

Note: In order to be able to read the actual speed in tuning mode for each wheel circumference, a one-time calibration must be carried out when using the stick for the first time.

There are thus 2 operating modes for the sIMPLEk stick:

1) Tuning mode (unlimited support, theoretically up to 100 km/h).

2) Calibration mode

sIMPLEk Stick for Bosch - Compatibility

- Bosch (Classic Line, Active Line, Performance Line, Performance Line CX).

- Also compatible with Bosch Gen 4 (model year 2020/2021).

Not compatible with Bosch Smart System 2022 (BES3).

The sIMPLEk Stick is Made in Germany.

Please note: As already mentioned, the sIMPLEk Stick is delivered in the form of a kit, but it only consists of 4 components: circuit board, connection cable, USB connector and housing. Since the board is already equipped with SMD components when delivered, assembly is relatively simple. You only have to insert and solder the USB connector. Then the board must be inserted into the housing.

Then the connection cable of the sIMPLEk stick must be connected in front of the original sensor of the e-bike. To do this, first remove the crank and open the motor cover, for which you will need additional tools. The sIMPLEk stick can be attached to a position of your choice, e.g. directly on the handlebar, using the connection cable and the cable ties supplied. This makes it easy to connect or disconnect the stick at any time.

Legal information: For legal reasons, the sIMPLEk Stick for Bosch e-bikes may not be operated on public roads or within the scope of the StVO (this also applies to all other e-bike tuning tools). The use of the sIMPLEk Stick is only permitted on private property, e.g. for competition or testing purposes. Use of the tuning tool may void the warranty of your Bosch e-bike. No liability whatsoever is accepted for any present or future damage (direct or indirect) resulting from the use of the sIMPLEk Stick. Use at your own risk and peril. We also accept no responsibility or liability for any damage caused during assembly or soldering of the sIMPLEk Stick.

Payment & Shipment

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




Badass Box

RedPed / BluePed /






Sx2 Dongle


Software (Module)
Box Module Module Module Module (Kit)
Module /
Module /
Range of functions ***** ***** * ***** **** *** *** *** *** / ** *

Easy installation of the tuning

***** ***** **** ** ** ** ** ** / * ** / * *

Invisible after installation

***** ***** * ***** ***** ***** ***** ***** ***** / **** ****

Switching on / off while riding

Gerät, Display
App, Display
(App), Display
Display, Magnet
***** / ****
Display /
Dongle, (Licht)

No more tuning Module at the bike

***** ***** ***** * * * * * * / **** ****

Invisible dismantling

***** ***** ***** ***** ***** ***** ***** ***** ***** / *** ***

Easy dismantling

***** ***** ***** ** ** ** ** ** / * ** / * *

Correct display of km/h

* *****
Display, App
Display, App
* ****


***** ***** ***** ***** ***** ***** ***** ***** ***** *****


* ***** * ***** ***** ***** ***** * * *

Price range in euros

169 to
189 to 299 149 to 154 219 to
159 to 179 139 to
139 to
89 to
89 to
139 to


Customer reviews

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.

sIMPLEk Stick for Bosch Gen4

sIMPLEk Stick for Bosch Gen4

139,00 €