Software update: increased performance and new eMTB+ driving mode
Good news for owners of the latest electric bikes with Bosch Performance Line CX (BDU384Y). From July 2025 they will be able to push the limits of their machine for free thanks to a software update. Bosch will release an update that will raise the
• maximum power from 600 W TO 750 W
• torque from 85 Nm TO 100 Nm
• maximum pedalling support from 340 % UP TO 400 %
However, users should bear in mind that with higher power comes increased wear and tear on components such as the motor, chain and gears, and logically a shorter range per battery charge. But if you're looking for an even more dynamic ride, just update the software via the eBike Flow app after July and adjust your settings.
It is important to stress that this option applies exclusively to the latest generation Performance Line CX engine (BDU384Y). You can check compatibility in the eBike Flow app or in the specifications of your e-bike. In addition, the manufacturer of the specific e-bike model needs to approve this performance boost, so we recommend checking with your dealer in advance for availability.
| 100 | 750 | 400 |
| Nm | W | % |
|
Maximum torque |
Max. motor power |
Max. support factor |
In addition to increased performance, Bosch has added another improvement - the new eMTB+ driving mode. This cleverly fills the gap between Race and eMTB modes to offer an even better combination of dynamics and control. The eMTB+ mode can flexibly adjust the level of assistance to up to 400% of your own performance. The "Extended Boost" function is as responsive as in eMTB mode, while achieving maximum inertia comparable to Race mode, but reserved for the lightweight Performance Line CX-R motor.
Bosch Performance Line CX-R: Top motor for e-MTB
The Bosch Performance Line CX-R is designed for maximum performance and control in demanding terrain. This motor is ideal for ambitious mountain bike riders looking for uncompromising support and a dynamic riding experience.
Main features and benefits:
• Maximum power and torque: With up to 100 Nm of torque and 750 W of power, it can handle even the toughest climbs and technical passages.
• Exclusive Race Mode: for maximum power and acceleration without lag, ideal for racing deployments.
• eMTB+ mode: intelligently combines dynamics and control, adjusting pedal support up to 400% of the rider's power and ensuring a smooth ride even on challenging terrain.
• Extended Boost: Provides extra power when overcoming large obstacles.
• Sensitive sensing: ensures an immediate and natural motor response to pedalling.
• Lightweight and durable construction: the use of magnesium makes the motor both lightweight and durable.
| 100 | 750 | 400 | 2,7 |
| Nm | W | % | kg |
|
Max. torque |
Max. motor power |
Max. support factor |
Rounded weight |
Who is it for?
The Bosch Performance Line CX-R is the ideal choice for experienced mountain bike riders who demand maximum performance and control on challenging terrain. Whether it's steep climbs, technical descents or dynamic sprints, this motor will provide the support you need for an unforgettable riding experience.
Availability:
The first mountain e-bikes with the new Bosch Performance Line CX-R engine should be available at specialist dealers from autumn 2025.
Technical specifications:
• Technical specifications: 100 Nm
• Maximum performance: 750 W
• Maximum support: 400 %
• Weight: Approximately 2.7 kg (100 g lighter than standard CX)
• Modes: Eco, Tour, eMTB+, Race
• Special features: Race mode for maximum acceleration, eMTB+ for dynamic control, Extended Boost for overcoming obstacles.
Kiox 400C: All important data in plain sight
Smart assistance, tailored to your driving
The motor of your Bosch e-bike reacts with intelligence to your every pedal, monitors your cadence and respects your chosen riding mode. The result is a perfectly natural riding sensation, where you feel the support exactly when you need it most - without any annoying jerks or delays. The eBike Flow app opens the door to easy engine software updates, personalised riding modes and clear monitoring of the status of your e-bike. All conveniently from your smartphone. The advantage? Your bike is constantly evolving and improving without having to visit the workshop.
Kiox 400C: A discreet and powerful companion for trail enthusiasts
The Kiox 400C is the ideal combination of functionality and ruggedness for riders who like to take on challenging trails and are looking for a reliable and clear display. Its design is well thought out to fit seamlessly into any terrain.
Key advantages Kiox 400C:
• Elegant integration: the display is unobtrusively and stylishly integrated directly into the top frame tube, thus not interfering with the overall look of the bike.
• Wide range of functions: Offers a comprehensive overview of speed, distance travelled, travel time, metres climbed and other important parameters for off-road driving.
• Durability and protection: the location in the top tube ensures a firm fit while protecting the display from shock, vibration and other mechanical effects typical of trail riding.
These features make the Kiox 400C your reliable partner, allowing you to fully concentrate on your ride and enjoy all its practical features without worry.
Safely hidden in the frame
The Kiox 400C is cleverly and elegantly integrated directly into the frame of your e-bike, where it sits firmly and stably in the top tube. This clever positioning brings several major advantages:
- Thanks to its location, the device is effectively protected from the shocks and shocks that are common when driving on rough terrain.
- Fixed mounting in the top tube eliminates any unwanted movement and increases the overall durability of the display.
- This protection guarantees the reliability of the Kiox 400C even on fast descents where vibrations and shocks are most intense.
Overall, this design ensures long-term and trouble-free use even in demanding conditions, which will be appreciated by every active cyclist.
USB-C charging: your e-bike as a power bank
The integrated USB-C charging socket takes the practicality of your e-bike to a new level. It turns it into a mobile power bank that you can use anytime, anywhere.
The main benefits and uses of the USB-C socket:
• Convenient charging on the move: you can easily recharge your smartphone or other electronic devices without having to stop.
• Lighting power: The socket allows direct power to your e-bike lights, increasing your safety on longer or night rides.
• Universal compatibility: USB-C is the modern standard, so you can easily connect most charging cables to the socket.
This feature greatly increases the comfort and practicality of using an e-bike, as it allows you to always have important devices charged and ready for use without unnecessary complications.
Intuitive audio navigation
The link between the eBike Flow app and the Kiox 400C display offers you an intelligent navigation system with voice guidance:
• Easy to start: activate navigation with a single tap in the eBike Flow app.
• Automatic route transfer: immediately after start-up, the planned route is shown on the Kiox 400C display.
• Precise route tracking: you can follow the route directly on the display while driving without having to manually adjust anything.
• Clear audio instructions: the display will guide you in the right direction with intuitive audio signals.
• Easy to navigate: clear audio alerts make you feel confident and safe on the road.
With this integrated navigation system, you can concentrate on your driving and let it guide you to your destination without worry.
Your display, your style
Customise the Kiox 400C display in the eBike Flow app to your individual needs and preferences. This user-friendly system gives you detailed settings for maximum comfort and efficiency on every ride.
Personalisation options:
• Wide selection of data: from more than 30 different functions and data, you can choose and view the ones that are most important to you.
• Individual layout: you can configure what information is shown on the display and in what order.
• Easy in-app setup: the intuitive eBike Flow app guides you through the entire customisation process step by step.
With these options, you'll always have an overview of relevant information during your ride, helping you to better plan and enjoy every cycling trip. The personalisation of the Kiox 400C display ensures maximum comfort and clarity on your journeys.
Brightness that dazzles
The extremely bright Kiox 400C display guarantees excellent readability in all lighting conditions thanks to its high brightness of up to 1000 cd/m². This means that all the information on the display is shown sharply and in vivid colours, making it easy to view even in direct sunlight.
Main advantages of the display Kiox 400C:
• High brightness (1000 cd/m²): ensures optimal readability even in bright daylight.
• Vivid colours: information is displayed clearly and with high contrast for easy and quick reading.
• Integrated ambient light sensor: Automatically adjusts the display brightness according to the current lighting conditions.
These features make the Kiox 400C ideal for use in any environment, as it intelligently adapts to ambient light to ensure perfect visibility at all times.
Bosch Battery Lock: Digital protection for your e-bike battery
Bosch offers an innovative solution for securing your e-bike battery - the Battery Lock function. Integrated into the Bosch Smart System, this feature provides a convenient and effective way to prevent theft of the most valuable part of your e-bike.
How does it work?
- Activation: after installing the Bosch battery, activate it using the eBike Flow app. The app will guide you through the setup.
- Digital key: the app generates a digital key that locks the battery when the e-bike is switched off. Unlocking is only possible via the app, the Bosch display (e.g. Kiox 300 or Kiox 500) or the smartphone app.
- Security: if a thief tries to use a locked battery in another e-bike with Bosch Smart System, the motor support will be deactivated and the e-bike will not work. The battery becomes worthless to the thief.
Why use Bosch Battery Lock?
• Peace of mind: locking the battery makes it much harder to steal an e-bike.
• Easy to use: setup is simple and intuitive. Once activated, the lock works automatically in the background.
• Theft protection: stolen e-bike batteries are often sold on the black market. The Battery Lock function ensures that a stolen battery becomes virtually unusable without the correct digital key.
Important information:
• Battery Lock is compatible with all Bosch batteries in the smart system.
• Multiple digital keys can be used to control the lock (smartphone with app, Kiox display).
• The function can be deactivated in the eBike Flow app, for example to share the e-bike with friends or family.
With Bosch Battery Lock you can be sure that your investment in an e-bike is safe.