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Bosch Performance Line CX-R – Smart System

Exceptional and consistently designed for maximum trail performance: the Bosch Performance Line CX-R is the highest-quality drive unit in the Bosch range. Developed in collaboration with professionals, it stands for pure power, precise control and an adrenaline-fuelled riding experience of the highest calibre.

The fifth generation of the CX-R already combines a highly sporty balance of power, dynamism and efficiency for demanding off-road riding. With the Performance Upgrade 2.0, Bosch significantly raises this performance level once again, giving you greater control over acceleration and power delivery.

The free software update will be available from May 2026 via the Bosch eBike Flow app and delivers a noticeable performance boost for compatible systems. Maximum torque increases to up to 120 Nm (standard: 100 Nm), whilst assistance is increased to up to 600 per cent (standard: 400 per cent). In addition, the maximum motor power of 750 watts is delivered over a longer period, ensuring greater consistency, particularly under heavy load.

The strongest assistance is delivered in the 0 to 15 km/h range, providing particularly direct and powerful acceleration from a standstill. The legally prescribed assistance limit of 25 km/h remains unchanged.

Using the eBike Flow app, the additional power reserves can be individually allocated across different riding modes. This allows the balance of torque, assistance and dynamics to be specifically tailored to the route, usage scenario and riding style.

• Noticeably stronger acceleration and significantly more propulsion
• More power available over a longer period
• Customisation of riding modes via the eBike Flow app
• Finely tuned control over torque and assistance characteristics
• 120 Nm maximum torque
• 750 watts maximum motor power
• Up to 600% assistance for maximum performance
• Low system weight of 2.7 kg

High-quality. First-class. Exceptional – for uncompromising trail rides.

Premium materials – inspired by aerospace and motorsport

Housing
The Performance Line CX-R’s housing is made of magnesium

Crankshaft
The crankshaft is made of titanium, ensuring low weight and a long service life.

Ball bearing
The ceramic ball bearings run more smoothly to deliver even better performance

High-quality sensor technology
Smart sensors take readings 1,000 times per second. Your input is measured by high-performance sensors up to a thousand times per second.

Race mode – Uncompromising assistance
The exclusive Race Mode gets you up to top speed quickly. As well as uncompromising support, you can expect maximum Extended Boost for the fastest lap times. Riding mode for demanding eMTB races

• Uncompromising assistance with up to 400 per cent of your own power
• Competitive dynamics and maximum Extended Boost
• Developed with eBike athletes for use in eMTB races – exclusively available in our most powerful drive units
• Customisable via the eBike Flow app

eMTB+ mode
eMTB+ mode combines the precise controllability of eMTB mode with the full power of Race mode, bridging the gap between the two modes. With the built-in ‘Dynamic Control’, you ride with complete control, even when you’ve increased your performance settings. On steep, bumpy terrain, you’ll enjoy confident propulsion, whilst on loose or wet surfaces it acts like traction control.

Quieter
Innovative solutions minimise noise, so you can focus fully on the trail.

Everything for your eMTB adventure – Pure Power. Precise assistance.

eShift
Combine the Performance Line CX-R with eShift and sporty derailleurs. This makes changing gears easier – so you can stay fully focused on the trail.

Braking statistics (optional)
With Bosch eBike ABS and ABS Pro, you can brake even more effectively and precisely. You can also view your braking data on your display or in the eBike Flow app.

Heart rate monitoring
Keep an eye on your heart rate at all times: you can connect your heart rate monitor or Apple Watch to your eBike and track your heart rate on your display whilst riding.

Strava
When you set off, the eBike Flow app automatically records your ride data and, if you wish, automatically syncs it with Strava or Apple Health.

eBike Flow app
Use the eBike Flow app to fine-tune your riding modes to suit your needs, or to record, analyse and share your ride and fitness data.

eBike Flow app

The eBike Flow app is the centrepiece of our smart system and enables you to enjoy a better, connected riding experience: safer, more personalised and more comfortable.

eBike Lock – Free additional protection against theft

The perfect complement – park your eBike. Enjoy some downtime.
eBike Lock is free for all eBikes with the smart system. When you switch on your eBike, it automatically checks whether your smartphone is nearby to act as a digital key. Only then is the motor assistance activated 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: simply remove the display from its mount and stow it away. This gives your eBike an extra layer of protection in no time. Reattach the display to activate the motor assistance and set off.

Unlock via smartphone – manually unlock your e-bike using your smartphone
Instead of automatic unlocking, you can also unlock your e-bike manually via your smartphone using a button on the home screen.

Battery Lock – Lock the battery digitally

Additional protection – Protect a valuable component of your e-bike
With Battery Lock, you can provide additional digital protection for your e-bike battery: this feature ensures that your battery can no longer be used if it is stolen.

Digital keys – Flexibility with a digital key
You can use several digital keys at the same time for Battery Lock: your smartphone with the eBike Flow app, as well as your Kiox 300 or Kiox 500.

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

Protect your eBike – eBike Alarm

Park with peace of mind – valuable location and status information
Whether you’re just parking your eBike for a short while or will be away for longer, you can stay connected and put your mind at ease via your smartphone.

Two-stage alarm – Audible and visual alarm
Your eBike will alert you with audible signals and flashing LEDs if it detects movement or is being moved. You’ll also receive a notification on your smartphone.

Tracking functions – Helpful location tracking
If your e-bike is moved significantly, you can use the tracking function to monitor its location.

eBike Pass – All your data always to hand
With the eBike Pass, you can keep track of important information about your eBike. Data relating to your 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 containing all the key 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
Choose the route profile and map details that suit your ride. Plan your own routes with waypoints or import existing ones from komoot.

On-screen navigation – Navigate precisely using your display
The navigation function for the Kiox 300, Kiox 400C and Kiox 500 guides you precisely to your destination – with turn-by-turn instructions and clear route guidance. If you’ve subscribed to Flow+, you’ll get even more map detail on your display.

Ride Screen – Turn your smartphone into an e-bike display
With the SmartphoneGrip, you can use the Ride Screen. It not only shows you all the important ride data, but also offers full navigation with 3D map views – even in portrait mode.

Activity Tracking – Automatically record and analyse your ride data
The eBike Flow app records your ride data as soon as you set off. In the statistics section, you’ll find valuable insights into your ride and fitness data – to analyse and share. If you wish, all data is also automatically synchronised with Apple Health.

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

Personalise your eBike – as unique as you are

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

Custom riding modes – fine-tune and customise
Assist, Dynamic, 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 e-bike.

Performance Upgrade 2.0 – Performance redefined
Unleash more power for your e-bike. The Performance Upgrade 2.0 delivers not only better acceleration but also stronger assistance. Thanks to software optimisations, you’ll enjoy more powerful propulsion and maintain speed for longer – with even more precise control. Maximum torque of up to 120 Nm via update. Variations may apply depending on the type of gear system. Higher performance settings may lead to increased wear and reduced range. The e-bike manufacturer may limit the maximum torque at the factory. In the eBike Flow app, therefore, only the maximum value authorised by the manufacturer can be set.

Available for:

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

Default performance settings:

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

The factory settings ensure a balanced combination of 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 in 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)

Available only in the USA and New Zealand:

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

You can find details on compatibility in the eBike Flow app.

The drive units are supplied as standard with a maximum assistance level of 340% or 400% – depending on the model. These settings offer a balanced combination of performance, riding enjoyment, range and wear and tear.

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

Extended Boost – Precise boost. More momentum
A targeted press of the pedal is all it takes for your e-bike to give you that decisive boost straight away. With Extended Boost, you can overcome obstacles such as steps or stones. Customise the extra boost in the eBike Flow app.

Further features

Over-the-air updates
Updates keep your eBike up to date and make it even better. You can easily download new eBike features 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 switch easily between them.

Digital service log
Your Bosch eBike dealer can synchronise your service appointment details with the eBike Flow app. Simply tap ‘My eBike’ in the app settings to view a record of what was done during your eBike’s servicing.

CO₂ savings
Find out after your ride how much CO₂ you’ve 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 trick you’ve performed, whether it’s jumps, stoppies, manuals or wheelies. To help you improve your riding technique, you’ll receive immediate feedback on the display and via an audible signal. Whilst riding, you’ll see the distance, duration, height or angle on your display for eight seconds. After your ride, you can find your best results in the eBike Flow app. This feature is enabled by default on your Kiox 400C and Purion 400. For all other displays, you can activate this feature at any time in the display settings, and you can also switch the audible signal on and off. The sensors are configured to respond only to distinct 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.

Features – Bosch Kiox 400C (BRC3200)

• Colour screen size: diagonal approx. 2.0" / 5.1 cm
• Maximum typical brightness: 1,000 cd/m² with brightness control
• Power supply: e-bike battery / internal battery
• Charging option for external devices via USB-C®
• Dynamic screen display without the need to manually switch between screens
• Audible alerts during navigation
• Display configuration with 30 customisation options via the eBike Flow app
• Can be expanded with a Mini Remote for more convenient operation

Product features

• Dimensions (H x W x D): 45 x 86 x 20 mm
• Display: 2.0-inch display (5.1 cm)
• Compatibility: Bosch The Smart System
• Weight: 57 g

More details

Protected within the frame
The Kiox 400C is discreetly integrated into the frame and securely mounted in the top tube. This provides optimum protection against knocks and impacts – even on fast-paced downhill rides.

Dynamic display
The Kiox 400C always shows you exactly the information you need at any given moment.

Charging USB-C devices
The integrated USB-C charging port turns your e-bike into a power bank. Charge your smartphone or e-bike light with ease – even whilst riding.

Brilliant display
With an exceptionally bright 1,000 cd/m², the Kiox 400C displays information in crisp, vivid color. Thanks to a sensor, the brightness adjusts to the ambient light.

Audio prompts guide you
When you start navigation in the eBike Flow app, your Kiox 400C automatically takes over the route and guides you precisely with audible prompts.

Display configuration
Customise the Kiox 400C’s display to suit your preferences in the eBike Flow app. With over 30 customisation options, you decide exactly what you see on your display whilst riding.

Bosch Mini Remote

As an additional control unit, the Mini Remote complements the System Controller, expands the range of functions and enables safe operation. It is connected to the System Controller via Bluetooth and can be flexibly mounted on the handlebars. Thanks to the buttons within easy reach of your thumbs, your hands stay on the handlebars at all times. More buttons mean more functions: with the Mini Remote, you get handy features such as the smart push assist and you can switch your eBike lights on or off.

Quick to retrofit
The Mini Remote can be fitted quickly and is connected to the System Controller via Bluetooth.

Three buttons, more functions
The buttons on the Mini Remote have dual functions: for ride mode, the light function and the smart push assist, as well as for controlling a display.

Full flexibility
The Mini Remote works with or without a display. Control the Ride Screen in the eBike Flow app or your display screens.

Intuitive operation
Short travel for your thumb and a non-slip soft-touch surface: the buttons feature icons and are intuitive to use.

Hardware facts

• Optional add-on to the System Controller for additional functions and convenient operation from the handlebars
  • Control of the Ride Screen or the navigation screen in the eBike Flow app (smartphone) or the Bosch display
  • Smart push assist and innovative roll-back protection (provides assistance on steep, impassable inclines and can prevent the e-bike from rolling backwards)
  • Switch lights on/off
• Optimal button ergonomics thanks to the flat design
• Wireless mounting on the handlebars
• Soft-touch surface for excellent grip
• LED indicates low battery on the Mini Remote, pairing activity or a lost connection to the system
• The battery life (CR1620 button cell) can last up to approx. 2 years and can be easily replaced by removing it from the handlebars and inserting it into the rubber insert
• IP54 protection against dust and splashing water
• Temperature range: -5 °C to +40 °C (operation) and +10 °C to +40 °C (storage)
• Only available for e-bikes with the smart system
• Bluetooth connectivity (Bluetooth 5.0 Low Energy)

Bosch PowerTube 600 / 800

Maximum range
With the PowerTube 600 / 800, long distances and significant elevation gains are easy to tackle.

Stylish e-bike design
Like all Bosch PowerTubes, the PowerTube 600 / 800 is perfectly integrated into the frame. An attractive e-bike design and high capacity – a combination that makes no compromises. A new, lighter casing has been used for the battery. Provided the e-bike manufacturer has designed the e-bike to allow for it, the battery can be easily swapped – for a longer or, if needed, shorter range.

Reliable power source
High safety standards. Impressive mileage, long service life, reliable performance – the lithium-ion battery is equipped with a battery management system that protects the battery cells from overloading.

User-friendly handling
The PowerTube 600 / 800 stands out for its particularly simple handling. The battery is always securely anchored in the frame on all rides; removal is via an intuitive, lockable mechanism, offering you user-friendly operation.

Comparison table