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| Discover African | License code | License code | License code + hardware | Display / Module | Box | module | module | module | module | Module / Sensor | Kit / Dongle | Dongle |
| Features | **** | ***** | ***** | ***** | * | ***** | **** | *** | *** | *** | ** | ** |
| Easy installation | ***** | ***** | *** | *** | **** | ** | ** | ** | ** | ** / * | ** / * | ** |
| Invisible after installation | ***** | ***** | **** | *** | * | ***** | ***** | ***** | ***** | ***** | **** | *** |
| Switch on / off while driving | * Browser / USB |
* Browser / USB |
*** Sensor |
***** Display |
* Essay |
***** App, Display |
***** Display |
***** Display |
***** Display / App |
*** Sensor |
**** Display / Plug |
**** Dongle |
| No more tuning module on the bike | ***** | ***** | *** | *** | ***** | * | * | * | * | * | *** | **** |
| Correct display km / km/h | ***** | ***** at 32 km/h level |
** | ***** Display |
* | ***** Display, App |
***** | ***** | **** depending on the system |
* | **** | * |
| Dethrottling | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| price in euro | from 69 | from 179 | from 179 | about 99 to 219 | about 154 to 239 | about 149 to 229 | about 139 to 199 | about 139 to 349 | about 149 to 349 | about 124 to 219 | about 69 to 159 | approx. 219 |
SpeedBox 1.6 B.Tuning for Bosch (Smart System Gen.5 + Rim Magnet) with App (BDU38)
AVAILABILITY: In stock
PRODUCT TYPE: Bosch Smart System
BRAND: speed box
You save: €50,00 (13%)
SpeedBox 1.6 B.Tuning for Bosch Smart System Gen5 (wheel magnet) – with app & Bluetooth
The SpeedBox 1.6 B.Tuning is a specially developed tuning solution for Bosch Smart 5th generation e-bike system with Rim magnetThis version is specifically aimed at Bosch Gen5 models based on the BDU38 platform and combines the removal of the 25 km/h speed limit with convenient control via SpeedBox App.
Thanks to integrated Bluetooth interface You can control the tuning directly via smartphone, adjust the speed limit individually, and access real-time riding data. At the same time, all important functions remain accessible via the control buttons on the e-bike. So you don't necessarily need to carry a smartphone with you on every ride, but the app offers significantly more convenience and additional features.
Another advantage of this version: Unlike some other solutions for Bosch Smart E-bike systems with rim magnets must no separate magnet simulator is positioned This makes the installation cleaner, simpler, and less prone to errors.
Important: Only for Bosch Smart System Gen5 with rim magnet
This module is exclusively for Bosch Smart System E-Bikes (BES3) is 5. generation suitable, provided the e-bike is equipped with Rim magnet Is provided.
The compatible SpeedBox 1.6 B. Tuning with:
- Bosch Performance Line CX (Smart System) of the 5th generation
- Bosch Gen5 / BDU38 / BDU384Y
- Rim magnet systems or solenoid valve disc
Illustration of a rim magnet or a solenoid valve disc.
Bosch Gen5 models with this platform were successively from 2025 introduced and are often also called Bosch CX Gen5 or simply Bosch Gen5 It is designated. Its characteristic feature is the technical identifier. BDU38These engines are usually equipped with two screws attached.
Important: If your Bosch Smart E-bike system with rim magnet, still for the older model BDU37 platform belongs, so technically Gen4 If that's the case, you'll need the following instead: SpeedBox 1.3 B.Tuning.
For a rough classification:
- BDU37 = Bosch Gen4 with rim magnet
- BDU38 = Bosch Gen5 with rim magnet
To be sure to distinguish between Gen4 and Gen5, please check your e-bike's data sheet or the marking on the motor under the cover.
Not compatible is the SpeedBox 1.6 B. Tuning with:
- Bosch Performance Line SX
- E-bikes with ABS or ABS Pro
- Models with spoke magnet or brake disc magnet
- older Bosch BES2 systems
Features and benefits
- Lifting of the 25 km/h speed limit for significantly enhanced engine support
- App connection via Bluetooth for convenient control via smartphone
- Individually adjustable speed limit
- Activation and deactivation via app or directly on the bike
- Real driving data and additional information can be accessed via the app.
- No separate magnet simulator solution required
- Can be removed without leaving any residue, for example before workshop appointments
The speed limit is lifted. However, from a technical point of view, a speed of not to exceed 35 km/h permanently.
Operation via app or directly on the e-bike
The SpeedBox 1.6 B.Tuning can be done either directly via the SpeedBox App or controlled via the e-bike's controls.
- via app
- Via the WALK function by holding down the “-” key
- Alternatively, use the key combination - + - +
A brief message on the display indicates the status:
- 3.5 km/h = Tuning active
- 2.5 km/h = Tuning deactivated
Activation and deactivation should generally be only when stationary and not while driving.
Setting the maximum speed
The maximum assisted speed can be most conveniently set via the SpeedBox Adjust the settings in the app. Alternatively, the adjustment can also be made directly on the e-bike.
To do this, you switch between support modes in the following order:
TURBO → eMTB → TOUR+ → ECO → TOUR+ → eMTB → TURBO
The currently set speed limit will then be displayed. This can then be changed via the WALK function or by a 360° rotation of the rear wheel to be changed.
The display corresponds to the set maximum value, for example:
- 2.5 km/h = 25 km/h
- 3.0 km/h = 30 km/h
- 3.5 km/h = 35 km/h
After a short period of inactivity, the last selected setting is automatically saved.
SpeedBox App – Live data, control and additional functions
The SpeedBox 1.6 B.Tuning can be controlled via Bluetooth with the free SpeedBox App Connect for iOS and Android. This gives you access to numerous additional features:
- Activate or deactivate tuning directly via the app
- Retrieve real speed, motor power, battery level and cadence
- Set an individual speed limit
- Hide tuning in the app
- View driving statistics and diagnostic data
The app is particularly helpful when actively tuning, because the e-bike display then No correct live values displays. In this case, you can easily read the actual data via your smartphone.
When you launch the app for the first time, you will be prompted to set a PIN. Additionally, a service password can be set up in case you want to change or reset the PIN later.
Note: Your smartphone should support Bluetooth 4.0 or higher to connect to the module.
Display behavior during operation
When tuning is active, the e-bike display shows No correct live values The correct total distance is calculated after the trip using the system's typical method. Countdown automatically adjusted.
Therefore, the e-bike should remain switched on after the ride until the synchronization is complete and the display is constant. 0,0 km/h displays.
Installation and installation
Installation is easily manageable with some basic technical understanding and can even be done yourself. Detailed, illustrated step-by-step instructions are included.
Since this version does not require a separate magnet simulator to be positioned, installation is significantly simpler in practice.
Here is a detailed installation video:
Delivery
- SpeedBox 1.6 B.Tuning module for Bosch Smart System Gen5 with rim magnet
- Detailed assembly instructions in German and English
- Free access to SpeedBox App for iOS and Android
Important instructions
- A pace of 35 km/h This limit should not be exceeded if possible.
- The e-bike's software should be as... not updated It will be. In the eBike Flow app, it is recommended to deactivate automatic updates.
- No support can be provided for malfunctions resulting from software updates.
- After the journey, the Countdown fully completed before the bike is parked or the display is removed.
- During short stops, it can be useful to keep one foot on the pedal so that the countdown does not start unnecessarily.
- For longer stops, at least a partial countdown should run.
- Activation and deactivation of the tuning only while stationary .
- For a brand new e-bike, it is recommended to ride a distance of approximately [distance] before the first tuning activation. 10 km.
- With older firmware versions, it may be necessary to enter the following settings in the menu after installation. Wheel circumference to enter the details of the e-bike so that all functions are activated correctly.
- The plug sockets must be connected in the direction of the lock. Do not twist the plugs when connecting them.
Note regarding Bosch system recognition
Square charging plug = Bosch Smart System BES3
Round charging plug = Bosch BES2
Does your Bosch e-bike have a square charging plugThis is a clear indication of a Bosch Smart System. However, this module only fits if additionally BDU38 / Gen5, Rim magnet and no ABS available.
Legal notice
This product is not approved for use on public roads. Its use is permitted only on private property or for sporting purposes outside of traffic regulations. Please inform yourself about the applicable legal regulations in your country. Use is at your own risk.
Tools
To install an E-Bike tuning chip in your E-Bike it is sometimes special tools necessary. Please check previously whether you have to open the engine compartment to access the motor connectors. This is especially true for products from the Modules, Kit, Dongle and Sensor.
Normally (but not always) opening the engine compartment requires loosening the crank. To do this, you will need a Crank puller. Some engines also have a Spider Tool This is important for opening the lock ring on the chainring - because the chainring must be loosened here so that the motor cover can be removed to access the inside of the motor. If you want to replace the chainring (wear, change the gear ratio), you often need a Spider Tool. The necessary special tools can also be found in our shop. To remove the engine cover, you usually need a Torx or Allen key. For installing the modules, appropriate Pliers from the electronics sector.
Do you decide not for a tuning solution that you have to install in the engine compartment (Box, Software), there is no need for any tools. In our Guide you will find further tips.
The EBikeTuningShop and EBikeTuningBlog We'll keep you regularly informed about the latest e-bike tuning and e-scooter tuning products and solutions. You can sign up for our free newsletter here:
warnings
Important information on tuning measures for e-bikes and e-scooters
We expressly point out that any modification to e-bikes and e-scooters – whether through hardware tuning (e.g. tuning chips, dongles, sensor adapters) or software tuning (e.g. apps, programs or USB tools) – can have consequences.
Tuning measures on e-bikes and e-scooters mean that they are no longer permitted for use on public roads as defined by the StVZO (Road Traffic Licensing Regulations). Legal use is therefore only possible on private property or - if permitted - in competitions. Riding an e-bike or e-scooter modified by tuning measures on public roads can lead to criminal liability for driving without a license (Section 21 of the Road Traffic Act) and driving without insurance (Section 6 of the PflVG). Tuning measures on e-bikes can lead to the loss of warranty rights and manufacturer guarantees. Furthermore, tuning measures can lead to the loss of insurance coverage and benefits from accident victim assistance in the event of an accident. The e-bike (or e-scooter) modified by tuning measures is subject to additional stress due to the higher speed, which can lead to safety risks.
Delivery time, shipping costs, minimum order value and payment methods:
Delivery time:
The processing time for physical products generally begins only after payment has been receivedWithin Germany, it is usually 1-3 business daysIn exceptional cases, processing may take up to... 8 business days Extend the delivery time. Delivery times for international destinations may also vary.
Please note: A DHL shipment confirmation You will only receive this information once the shipment has been scanned for the first time at the parcel center. Only from this point onward will the shipment be trackable.
Due to high demand, ongoing incoming goods, or anticipated short-notice restocks, some products may experience longer processing times. We appreciate your understanding.
Note regarding digital products / license codes: License codes and license keys are not included in the package, but by email Shipped. Processing will only begin after payment is received. Please note that instant transfer Sofort does not automatically correspond to a direct bank credit and in individual cases it may also be the case that Credit card payments Delays may occur during payment processing. The respective license code will then be generated and sent. In some cases, this can take several hours. If you do not receive a license code, please always inform us. Order number in the format xxx-xxx-xxx mit.
Delivery area:
We deliver 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 customers from Switzerland: For deliveries to Switzerland we recommend here a separate service.
Shipping:
Shipping costs for Germany are €4,90; shipping is waived for orders over €180. For countries within the EU, shipping costs are €12,90; shipping is waived for orders over €2.000. We currently do not ship to countries outside the EU. We also do not ship to the USA, France, or Canada (including any overseas territories). We ask that you bear the costs of any return shipments yourself. Please note that customs duties may apply in countries outside the European Union.
Minimum order value:
The minimum order value is €25. Only above this amount are advance payment, PayPal, and bank transfer available as payment methods.
Maximum order value:
The maximum order value for orders outside the EU is €1.000. The maximum order value within the EU is €12.500.
Payment in advance via bank transfer:
Please transfer the total amount, including your order number, to our account, which was communicated to you in the confirmation email. Please note that transfers within Germany can take up to three business days. Transfers from abroad, especially from Austria, usually reach us very quickly. Transfers from other countries can take slightly longer on average.
Payment in advance via Paypal:
At the end of the ordering process, you will be redirected to the PayPal page. There you can initiate your payment. Once the PayPal transaction is complete, your order status will change in the shop. The goods will then be shipped as soon as possible.


