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Bosch Performance Line CX Generation 5 - Smart System

Performance Upgrade 2.0 for Bosch Performance Line CX (BDU384Y)

The Bosch Performance Line CX (BDU384Y) represents a new level of riding dynamics and agility in the e-bike segment. It is designed to be powerful, light and quiet - with a clear focus on maximum uphill flow and a natural, controlled riding experience.

Even in its standard state, the drive unit delivers a balanced triad of performance, efficiency and range with 85 Nm torque, 600 watts of power and 340 % support. The system is complemented by a low weight of just 2.8 kg - around 100 g lighter than its predecessor - and therefore optimised for both sporty and efficient use.

Bosch is significantly expanding this performance level with the new Performance Upgrade 2.0. From May 2026, the performance of the Drive Unit can be individually increased: more power, higher torque and a significantly increased support factor are available - directly controllable via the Bosch eBike Flow app.

The free software update enables compatible systems to achieve a noticeable increase in performance. The maximum assistance increases to up to 600%, while the peak power of up to 750 watts remains available over a longer period of time. In addition, the riding modes can be customised - precisely tailored to the area of use and riding style.

• Noticeably stronger acceleration and more direct propulsion
• Up to 600 % support factor for maximum performance
• Up to 120 Nm max. Torque
• Extended peak power availability (up to 750 W)
• Customised configuration of the riding modes via the eBike Flow app
• Fine-tuned balance between torque, power and efficiency

The upgrade is most effective in the lower speed range and ensures particularly powerful acceleration from a standing start. The legally prescribed assistance limit of 25 km/h remains unchanged.

With the upgrade, the Performance Line CX achieves a maximum torque of up to 120 Nm, a motor output of up to 750 watts and an assistance output of up to 600%. This further sharpens the sporty character of the platform without losing control or the natural riding feel.

Newly tuned sensors for finer power delivery

• The Performance Line CX reacts more sensitively to your input than ever before
• Bosch has reinterpreted and improved the signals from the sensors
• The cadence sensor measures how fast the cranks are turning
• The torque sensor measures how much force is exerted on the pedals
• Acceleration and position sensors recognise how the e-bike is moving

The Drive Unit does exactly what you want - sensitively, controlled and directly.

All the options. Your choice
The higher torque ensures stronger acceleration. The increased maximum power makes best times possible. The increased support quadruples your own power.

eMTB+ mode
With the built-in "Dynamic Control", you ride with full control, even if you have increased your performance values. In steep, bumpy riding situations, you have superior propulsion and on loose or wet surfaces it is like traction control.

eMTB mode and Extended Boost
The eMTB mode reacts progressively to you and recognises how much power you want at lightning speed based on your pedal pressure - dynamically, with maximum traction and always in control. With the integrated Extended Boost, all it takes is a targeted kick on the pedal and the Drive Unit pushes you effortlessly over steps and stones.

Push assist and hill start assist
With the push assist, you can easily push your eMTB, while the Drive Unit automatically adjusts the pushing speed to the gradient and surface. In addition, the hill start assist enables a controlled and high-traction start, even on steep terrain. Hill Hold is active in both cases: Your eMTB stays in place and does not roll back unexpectedly.

Bosch eBike ABS Pro
ABS Pro is ideal for professional eBikers: designed for fast, sporty downhill riding and braking. You can fully utilise your braking skills and still feel how the system increases performance.

eShift with TRP
You can decide whether you want eShift with TRP to shift gears automatically for you or whether you want to change gears yourself on varied terrain with fast manoeuvres - simply at the touch of a button. With eShift, gear changes are efficient and precise.

PowerMore 250
Compact and weighing just 1.5 kilograms, the range extender can be easily attached to the water bottle holder. It can be combined with all batteries in the smart system. Please find out in advance whether you can use the range extender for your eBike.

Customised riding modes
Your trail, your riding experience, your mode: With the help of four parameters, you can easily customise the riding modes to your needs using the slider in the eBike Flow app. Support, dynamics, maximum torque and maximum speed - you decide what you need.

Powder-coated. Robust right up to the tips

• The housing is made of magnesium - robust, corrosion-resistant and hard.
• The sealing concept prevents splash water from penetrating.
• Bosch was able to reduce the noise generated by the gearbox.
• The Performance Line CX motor is quiet. It strikes a balance between power delivery and noise development

eBike Flow app

The eBike Flow app is the centrepiece of our smart system and gives you a better, connected riding experience: safer, more individual and more convenient.

eBike Lock - free additional protection against theft

Ideal addition - park your eBike. Enjoy time out.
eBike Lock is free of charge for all eBikes with the smart system. When you switch on your eBike, it automatically checks whether your smartphone is nearby as a digital key. Only then is the motor assistance enabled and your eBike unlocked.

Display as a key - use your Kiox 300 or Kiox 500 as a key
It's as intuitive as it sounds: you remove the display from the bracket and stow it away. This quickly gives your eBike additional protection. Put the display back in and use it to activate the motor support to set off.

Unlocking via smartphone - unlock eBike manually via smartphone
Instead of unlocking your eBike automatically, you can also unlock it manually using your smartphone with a button on the home screen.

Battery Lock - digitally lock the battery

Additional protection - protect a valuable component of your eBike
With Battery Lock, you can also protect your eBike battery digitally: This function ensures that your battery can no longer be used if it is stolen.

Digital keys - Flexible with a digital key
You can use several digital keys at the same time for Battery Lock: your smartphone with the eBike Flow app and your Kiox 300 or Kiox 500.

Flow+ - Premium service with Flow+
Battery Lock is available as a premium service from Flow+. You can test Flow+ free of charge - for 12 months with the ConnectModule. Without the ConnectModule, you get one month free of charge.

Protect your eBike - eBike Alarm

Carefree parking - valuable location and status information
Whether you're only parking your eBike for a short time or away for a longer period of time, you can stay connected and relaxed via your smartphone.

Two-stage alarm - audible and visual alarm
Your eBike warns you with sound signals and illuminated LEDs if it detects movement or is moved. You will also receive a notification on your smartphone.

Tracking functions - helpful location tracking
If your eBike is moved a lot, you can use the tracking function to track its location.

eBike Pass - All data always to hand
The eBike passport allows you to keep track of important information about your eBike. Data about the eBike is stored here. You can add details manually - even independently of eBike Alarm.

Theft report - quick help in the event of theft
If your eBike is stolen, you can create a document with all the important information about the incident for the police, based on the data from the eBike Pass - and add a live tracking link.

Navigation - Exploring means experiencing

Route planning - plan according to your needs
Select the route profile and map details that suit your journey. Plan your own routes with intermediate destinations or import existing ones from komoot.

Display navigation - Navigate precisely with your display
The navigation function for Kiox 300, Kiox 400C and Kiox 500 takes you precisely to your destination - with turn-by-turn directions and clear route guidance. If you have subscribed to Flow+, you will receive even more map details on your display.

Ride Screen - turn your smartphone into an eBike display
You can use the Ride Screen with the SmartphoneGrip. It not only shows you all the important riding data, but also offers full navigation with 3D map display - even in portrait format.

Activity tracking - automatically record and analyse ride data
The eBike Flow app records your ride data as soon as you set off. The statistics provide you with valuable insights into your tour and fitness data - for analysing and sharing. If desired, all data can also be automatically synchronised with Apple Health.

koomot and Strava - Connect the eBike Flow app with your favourite apps
Transfer your routes from komoot to the eBike Flow app, synchronise your activities with Strava and share your successes with your friends or your community.

Personalise your eBike - as individual as you are

Display configuration
Configure your Kiox 300, Kiox 400C or Kiox 500 display according to your needs. Create new screens with your favourite information. Choose from over 30 display options and organise them as you wish.

Individual riding modes - tune and customise
Support, dynamics, maximum torque and maximum speed - you decide what you need. You can also put together your favourite riding modes. Choose from all the riding modes available for your eBike.

Performance Upgrade 2.0- Performance redefined
Unleash more power for your eBike. The Performance Upgrade 2.0 not only provides better acceleration, but also stronger support. Software optimisations give you more powerful propulsion and make you faster for longer - with even more precise control. Maximum torque of up to 120 Nm per update. Deviations are possible depending on the type of shifting. Higher performance values can lead to increased wear and lower range. The eBike manufacturer can limit the maximum torque at the factory. Therefore, only the maximum value approved by the manufacturer can be set in the eBike Flow app.

Available for:

• Performance Line CX-R (BDU386Y)
• Performance Line CX (BDU384Y)
• Cargo Line (BDU384Y)

Performance values supplied as standard:

• Performance Line CX-R: 100 Nm / 750 W / 400 % support
• Performance Line CX: 85 Nm / 600 W / 340 % support
• Cargo Line: 85 Nm / 600 W / 400 % support

The factory settings ensure a good balance between performance, riding enjoyment, range and wear.

Up to 600 % assistance up to 15 km/h.
Available in Race, Turbo, eMTB+, Cargo and Auto riding modes for selected drive units of the smart system.

Compatible drive units:

• Performance Line CX-R (BDU386Y)
• Performance Line CX Race Limited Edition (BDU376Y)
• Performance Line CX (BDU384Y / BDU374Y)
• Cargo Line (BDU384Y / BDU374Y)
• Performance Line PX (BDU347Y)

Only in the USA and New Zealand:

• Performance Line Speed (BDU388Y)
• Performance Line Sport (BDU347Y)

Details on compatibility can be found in the eBike Flow app.

The Drive Units are supplied with a maximum of 340 % or 400 % support as standard - depending on the respective model. These settings offer a balanced relationship between performance, riding enjoyment, range and wear.

Display configuration
Configure your Kiox 300, Kiox 400C or Kiox 500 display according to your needs. Create new screens with your favourite information. Choose from over 30 display options and organise them as you wish.

Extended Boost - Precise push. More momentum
A targeted push on the pedal is all it takes to give your eBike that decisive boost. With the Extended Boost, you can overcome obstacles such as steps or stones. Customise the extra boost in the eBike Flow app.

Further functions

Over-the-air updates
Updates keep your eBike up to date and even improve it. You can easily download new eBike functions and transfer them to your eBike via Bluetooth.

One account. Multiple eBikes
The eBike Flow app becomes your digital garage: you can add up to six eBikes to your account - and easily switch between them.

Digital service book
Your Bosch eBike dealer can synchronise the data of your service appointments with the eBike Flow app. Simply tap on "My eBike" in the app settings and you will find a record of what was done when your eBike was serviced.

CO₂ savings
After your ride, find out how many CO₂ emissions you have saved compared to a car journey.

Trick Check - More skills. More fun.
Improve your skills and analyse your performance: Trick Check automatically recognises and records the type of tricks you perform, whether jumps, stoppies, manuals or wheelies. To help you improve your riding technique, you receive direct feedback on the display and via an acoustic signal. During the ride, you can see the distance, duration, height or angle on your display for eight seconds. After the ride, you can find your best values in the eBike Flow app. The function is active as standard on your Kiox 400C and Purion 400. For all other displays, you can activate it at any time in the display settings and switch the signal tone on and off. The sensor system is set so that it only reacts to clear tricks.

Trick Check works with the Performance Line CX (BDU384Y), Performance Line CX-R (BDU384Y), Performance Line CX Race (BDU374Y), Performance Line CX (BDU374Y) and Performance Line SX (BDU314Y) and on the following displays: Kiox 300, Kiox 400C, Kiox 500, Purion 200, Purion 400.

Bosch Purion 200 Remote with integrated 1.6" color display

Developed with ergonomics experts
Purion 200 is mounted on the left-hand side of the handlebar, close to the thumb. Thanks to its curved shape, the combination of control unit and display fits beautifully on the handlebars. If the plus and minus buttons are aligned correctly - i.e. almost vertically - this means greater convenience for you when operating the system and faster reading of the riding data. You can control your eBike with just one thumb movement and change the riding mode or the display, for example. We developed Purion 200 together with the ergonomics experts from SQlab to optimise the combination of functionality, comfort and design.

Optimum readability
A high resolution, more color depth, a clear structure and easy-to-understand symbols ensure that you can quickly read and understand the information on Purion 200. The integrated ambient light sensor automatically adjusts the brightness of the display depending on the ambient light. This makes it very easy to read even in sunshine and darkness.

Powerful display combinations
If you want more information or a larger display for even better readability, you can use another display in addition to Purion 200: Have Kiox 300 or Kiox 500 fitted by a specialist dealer or use your smartphone as a second display using SmartphoneGrip and the eBike Flow app. The additional new main display is controlled using the Purion 200 buttons. Purion 200 continues to show you the information that was last selected: For example, you can display the current speed on Purion 200 while your main display navigates you.

Wide range of functions
Purion 200 offers numerous functions to help you ride and arrive better. In addition to basic functions such as switching your eBike and lights on and off, you can also activate the smart push-assist function using the Purion 200 buttons, for example, to make it easier to push your eBike when walking. At the touch of a button, you can change the display in a matter of seconds and simply select the information that is important to you at the moment: for example, keep an eye on the remaining range, see how far you have already travelled or check your cadence.

Intelligently connected
Five buttons, one display and lots of options: Purion 200 is networked in the smart system and connects the eBike to the eBike Flow app. This provides you with digital functions that you can easily activate and use via the app - e.g. for more theft protection, recording your activities or the option to customise riding modes to your needs. Purion 200 is also the interface for transferring updates to your eBike. So it always stays up to date.

Bosch PowerTube 600 / 800

Maximum range
With the PowerTube 600 / 800, long distances and many metres in altitude are easy to master.

Stylish eBike design
Like all Bosch PowerTubes, the PowerTube 600 / 800 is perfectly integrated into the frame. An attractive eBike design and high capacity - a combination without compromise. A new, lighter housing has been used for the battery. Provided the eBike manufacturer has prepared the eBike for this, it can be easily replaced - for more or less range.

Reliable energy supplier
High safety standards. Enormous mileage, long service life, reliable handling - the lithium-ion battery is equipped with a battery management system that protects the battery cells from overload.

User-friendly handling
The PowerTube 600 / 800 is characterised by particularly easy handling. The battery is always securely anchored in the frame on all tours, removal is via an intuitive, lockable mechanism and offers you user-friendly operation.

Comparison table