SpeedBox 1.6 for Bosch (Smart System Gen.5 + Rim Magnet) (BDU38)
AVAILABILITY: In stock
PRODUCT TYPE: Bosch Smart System
BRAND: speed box
You save: €20,00 (6%)
SpeedBox 1.6 for Bosch (Smart System Gen.5 + Rim Magnet) – Tuning module for Smart System with rim magnet
For those who just want to drive faster – without an app:
The SpeedBox 1.6 was specially made for the Bosch Smart System (BES3) 5th generation with rim magnet – also known as Bosch Gen5This tuning module reliably removes the 25 km/h speed limit, works without an app or Bluetooth, and can be controlled directly via the e-bike's control unit. A maximum speed of 35 km/h should not be exceeded.
In contrast to some other tunings for Bosch Smart System E-bikes with rim magnet must be SpeedBox 1.6 no suitable position for the magnet simulator must be found!
Compatibility
- Compatible with Bosch Smart System (BES3) fifth generation e-bikes – also as Bosch Gen5 Only suitable for models with rim magnets.
Compatible with the following engine type:
Bosch Performance Line CX (Smart System) of the 5th generation with rim magnet (large magnet on the rear wheel valve).
Fig. Rim magnet / solenoid valve disc
This is the SpeedBox 1.6 to provide a practical tuning solution especially for Bosch Smart System drives with Performance Line CX motors and rim magnet as well as the technical identification “BDU38” (“Bosch Drive Unit with serial number 38”). These models, introduced successively from the beginning of 2025, are sometimes referred to as "Bosch CX Gen5" or simply "Bosch Gen5." In these models, the motor is secured with two screws.
IMPORTANT: If you have a Bosch e-bike with rim magnet from the model years 2022-2024 please select the SpeedBox 1.3These models are often referred to as “Bosch Gen4“ – you can recognize them by the internal technical designation “BDU37“ (=“Bosch Drive Unit with serial number 37"). To find out whether you have a Gen4 (BDU37) or Gen5 (BDU38) e-bike, please check your e-bike's data sheet or the sticker on the motor under the cover.
- Important:
- Not compatible with Bosch Performance Line SX (e.g. BDU3144 / BDU3145)
- Not compatible with e-bikes with ABS / ABS Pro
- Not compatible with models with classic spoke magnet
- Not compatible with SpeedBox App
Operation directly on the bike
- Activation: via WALK key ("hold down-" key) or key combination -+-+
- A short display indicates whether tuning has been switched on or off: 3.5 km/h = tuning active | 2.5 km/h = tuning deactivated
- The display does not show correct values when tuning is active, but the total distance is processed correctly after a countdown.
Features
- Completely removes the 25 km/h limit – for sporty driving without limits
- A maximum speed of 35 km/h should not be exceeded
- Desired Max Speed is adjustable
- No correct speed display when tuning is active
- Correct total distance after deduction (countdown)
- No app or Bluetooth – no updates, no pairing, no hassle
- 100% integrated into Bosch Gen5 (BES3) – no error messages
- Unobtrusive installation in the frame
- Can be removed without leaving any residue – ideal before visits to the workshop
Setting the maximum speed
To set the maximum speed, you need to change the mode by going down 3 steps from Turbo mode and then up 3 steps again: Turbo - eMTB - Tour+ - Eco - Tour+ - eMTB - Turbo. The current speed limit will then be displayed.
If you now want to change the current maximum speed, briefly press the WALK button or rotate the rear wheel 360°. A displayed speed of 2.5 km/h corresponds to a maximum speed of 25 km/h, a displayed speed of 3.0 km/h would be a maximum speed of 30 km/h, and 3.5 km/h on the display would correspond to a maximum speed of 35 km/h. After five seconds of inactivity, the last saved speed limit is saved.
Tip: The SpeedBox 1.3 is also available in a special B.Tuning Variant that also comes with the practical SpeedBox App compatible. You benefit from various useful additional features.
Installation
The SpeedBox The 1.6 is connected directly to the engine inside the frame. Installation is straightforward with some technical knowledge. Illustrated step-by-step instructions are included.
Important information - Please note
-A speed of 35 km/h should not be exceeded.
-The software of the e-bike should not Be sure to deactivate automatic updates in the eBike Flow app.
-No warranty or support for malfunctions caused by updating the e-bike software.
-When using the tuning feature, the e-bike must remain switched on after the end of the ride until the display shows a constant speed of 0,0 km/h (countdown). During this phase, the display shows the remaining time. The bike can then be safely parked.
-Do not remove the screen from the bike until the countdown (mileage deduction) is complete.
-During short breaks, it is advisable to keep one foot on the pedal to avoid starting the "countdown" withdrawal process, so that you can continue riding seamlessly.
-For longer stops, at least run a partial "countdown" (kilometer deduction).
-Chip activation / deactivation please before, and not while driving.
-Will the SpeedBox If installed on a brand new e-bike, you must first ride the bike for at least 10 km before switching on the tuning for the first time.
-To all SpeedBoxTo activate the features correctly, you must install the SpeedBox-Tunings, open the menu and enter the wheel circumference of the e-bike if you have an older firmware on the bike.
-The plug sockets must be connected facing the lock. Do not twist the plugs when connecting!
Delivery
- SpeedBox 1.6 Tuning module
- Assembly instructions (German & English)
Legal notice
The use of this product is not approved for public road traffic. The use may only be carried out on private grounds or to Competition and testing purposes Installation is at your own risk. Please observe the applicable laws in your country.
Order now - SpeedBox 1.6 for Bosch Gen5 / Smart System
No app requirement, no limit, no compromises: The SpeedBox 1.6 is the perfect solution for anyone who wants to get more out of their Bosch Gen5 e-bike with rim magnet – simple, safe, and effective. Get it online now!
Tip: Bosch Smart System E-Bikes (BES3) can be easily identified by the plug on the charging cable.
SQUARE plug = Bosch Smart System BES3 (Bosch Gen4 + Bosch Gen5):
ROUND plug = BES2 (Bosch Gen2, Gen3 & Gen4):
Does your Bosch E-Bike charging cable have a square plug (as shown above), you have the correct Tuning module selected (provided it is a Bosch Gen5 (BDU38) e-bike with rim magnet, and the bike does not have ABS or a standard magnet). If your Bosch e-bike does not have either of these connectors, you either do NOT have a Bosch e-bike, or you have an e-bike with the old Gen1 drive (Classic Line).
Comparison of e-bike tuning products:
| JUM-Ped | Mountain Tuning | Badass Box | RedPed | VOLspeed | PearTune | SpeedBox | MBIQ | sIMPLEk | Sx2 dongle | |
| Art | Software |
Software |
Box | module | module | module | module |
module / Sensor |
module / Dongle |
Dongle |
| Features | ***** | ***** | * | ***** | **** | *** | *** | *** | *** / ** | * |
| Easy installation | ***** | ***** | **** | ** | ** | ** | ** | ** / * | ** / * | * |
| Invisible after installation | ***** | ***** | * | ***** | ***** | ***** | ***** | ***** | ***** / **** | **** |
| Switch on / off while driving |
* Gerät |
***** Gerät, Display |
* Essay |
***** App, Display |
***** Display |
***** Display |
***** (App), Display |
*** Display, Magnet |
***** / **** Display / Plug |
**** Plug |
| No more tuning on the bike | ***** | ***** | ***** | * | * | * | * | * | * / **** | **** |
| Invisible dismantling | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** / *** | *** |
| Easy dismantling | ***** | ***** | ***** | ** | ** | ** | ** | ** / * | ** / * | * |
| Display correct km/h |
***** Display |
***** Display |
* |
***** Display, App |
***** Display |
***** Display |
***** Display, App |
* |
**** Display |
* |
| Dethrottling | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| Thrushes | * | ***** | * | ***** | ***** | ***** | ***** | * | * | * |
| price in euro |
169 to 249 |
189 – 349 | 139 – 164 |
219 to 239 |
159 – 219 |
139 to 259 |
139 to 349 |
89 to 199 |
89 to 219 |
139 to 159 |
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 the 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:
Delivery takes 1-3 business days within Germany. In exceptional cases, it can take up to 8 business days. Delivery times outside Germany may take longer. Please understand that due to high demand, some products may experience longer delivery times.
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.
