Cropped Performance Line CX on light gray background.

Max. torque

100

600

Max. motor power

140

600

Max. support¹

0.9

2.9

Rounded weight

Trick Check

Show what you can do: Trick Check makes your skills measurable. Your tricks are automatically recognized, shown live on the display, and your best performances are saved in the eBike Flow app.²

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Performance upgrade 2.0

The performance upgrade 2.0 enables maximum motor support of 600% up to 20 mph via a free software update.¹

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Extended Boost

Extended Boost is now even better: Customize the extra boost in the eBike Flow app and use it across all riding modes and other drive units.³ Allowing you to overcome obstacles such as steps, roots, or small rocks.

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The Performance Line CX is the powerhouse among drive units. For a unique eMTB experience.

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eMTB+ mode offers the perfect combination of dynamics, performance, and control.

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The multi-sensor concept enables intuitive handling and an agile riding experience.

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Two eBikers are riding on a rocky trail through a forest.

The Purion 400 display is mounted on a bicycle handlebar. It shows the current speed on the display.

Dynamic and natural

eMTB mode dynamically adjusts the support and ensures a natural riding experience and optimum control when eMTB riding. Ideal for technical sections and overcoming obstacles.

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Close-up of a Purion 200 with speed and Tour+ screen layout.

For athletic rides

With the stepless support offered by Tour+ mode, you'll save energy and enjoy a natural riding experience. It will no longer be necessary to switch modes manually. So your focus will always be on having fun.

Discover Tour+ mode

An eMountain bike rider pushes his eBike up a dirt slope in the forest.

Walk assistance and hill start assist

Hold down the minus button and start walking: The walk assistance feature helps you push your eBike more easily, even on the steepest of trails. With hill start assist, you can start off easily – without unintentionally rolling back.

Ambitious trails, faster rides, better skills: The Bosch eBike ABS system's ABS Trail mode is made for demanding routes and challenging terrain.

Discover Bosch eBike ABS

An eBike with an onboard computer displaying "ABS" and "eMTB". It is set to "Trail Pro" mode.

M+ offers the ideal combination of automatic and manual gear selection. The feature selects the right gear when you're coasting – so you can focus on your ride. When you pedal, you shift gears yourself – for full control.

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Stay loyal to your community and use your favorite apps with your eBike. By connecting to the eBike Flow app, you can sync routes, ride data, and activities with Strava – fully automatically.

You sit on your eBike and sync your values with Strava using the eBike Flow app.

Pick the ones that suit you: In the eBike Flow app, you can define your four favorite riding modes. Choose from all the riding modes available for your eBike – and customize them in the usual way.

Screenshot of the eBike Flow app: List of available riding modes (Turbo, eMTB+, eMTB, Sport, Auto, Tour+, Eco) for customising your eBike. You can select up to four riding modes. The selected modes are "Turbo, eMTB+, Tour+ and Eco".

The eBike Flow app records your ride data and provides you with valuable insights into your tour and fitness data. With a Flow+ subscription⁴, you get additional statistics and an annual overview.

Discover Flow+

Looking over the shoulder of a man checking his stats in the eBike Flow app.

The eBike Flow app is your digital eBike garage: You can add up to six eBikes to your account – and switch back and forth between them easily.

Discover eBike Flow app

A person holds a smartphone displaying a list of their own eBikes in the eBike Flow app.

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Bosch eBike battery (PowerTube 540) with gray print.

PowerTube 800

The PowerTube integrates perfectly into the frame design, delivering a clean, elegant eBike look.

About the product

Kiox 300

As a smart companion for your rides, Kiox 300 displays all relevant information and reliably guides you to your destination.

About the product

Bosch eBike ABS

The Bosch eBike ABS helps you brake more effectively and safely – whether you’re in the city, dirt bike paths, or on trails.

About the product

ConnectModule

BCM3100

The basis for digital theft protection: As a technology permanently installed on the eBike, it ensures that your eBike is protected online and digitally.

About the product

Technical data
	Performance Line CX (BDU384Y)⁹	Performance Line CX (BDU374Y)¹⁰
eBike system	The smart system	The smart system
Shifting system type	Derailleur system, hub gear system	Derailleur system, hub gear system
Max. support (%)	600 %	600 %
Maximum possible drive torque	120 Nm	85 Nm
Start-up behavior	Direct, Powerful	direct, Powerful
Max. supported speed	32 km/h	32 km/h
Backpedal brake	x	x
Walk assist with Hill Hold	j	j
Hill start assist with Hill Hold	j	j
Gear shift detection	Hub gear system: no Derailleur system: yes	Hub gear system: no Derailleur system: yes
Weight, approx.	2,8 kg	2,9 kg
Rated continuous output	250 W	250 W
Maximum power	750 W	600 W
Max. power at a cadence of 70 rpm	730 W	600 W
Max. power-to-weight ratio, approx.	268 W/kg	207 W/kg

¹Maximum values: Deviations possible, depending on hub gear system and battery. The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer. A maximum of four riding modes, in addition to Off mode, can be activated. Using the custom riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app.
Exception gear shift detection: eShift hubs

² Maximum values: Deviations possible, depending on hub gear system and battery. The performance values of this drive unit may be lower upon delivery. They can be increased and customized using the eBike Flow app. It should be noted that higher performance values can lead to increased wear and have a negative effect on the range.
The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer. A maximum of four riding modes, in addition to Off mode, can be activated. Using the custom riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app.
Exception gear shift detection: eShift hubs.

⁴Maximum values: Deviations possible, depending on hub gear system and battery. The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer. A maximum of four riding modes, in addition to Off mode, can be activated. Using the custom riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app.
There is no backpedal function for the derailleur system, but it is optional for the hub gear system.
Exception gear shift detection: eShift hubs

⁵ Maximum values: Deviations possible, depending on hub gear system and battery. The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer. A maximum of four riding modes, in addition to Off mode, can be activated. Using the individual riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app. There is no backpedal function for the derailleur system, but it is optional for the hub gear system.
Exception gear shift detection: eShift hubs

⁶ Maximum values: Deviations possible, depending on hub gear system and battery. The max. support of 600% relates to speeds of up to 15 km/h and can be increased in the Race, Turbo, eMTB+, Cargo and Auto riding modes. The values can be set individually to a limited extent using the eBike Flow app. It should be noted that higher performance values can lead to increased wear and have a negative effect on the range.
The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer. A maximum of four riding modes, in addition to Off mode, can be activated. Using the custom riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app.
Exception gear shift detection: eShift hubs

⁷ The various riding modes are activated/deactivated by the bicycle manufacturer and the dealer. A maximum of four riding modes, in addition to Off mode, can be activated in the display. Using the individual riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app. It's not possible to customise your riding mode on speed eBikes.

⁸ Maximum values: Deviations possible, depending on hub gear system and battery. Activation/deactivation of the various riding modes is carried out by the bicycle manufacturer and the dealer. A maximum of four riding modes, in addition to Off mode, can be activated in the display. Using the individual riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app. It's not possible to customise your riding mode on speed eBikes.

⁹ Maximum values: Deviations possible, depending on hub gear system and battery. The max. support of 600% relates to speeds of up to 15 km/h and can be increased in the Race, Turbo, eMTB+, Cargo and Auto riding modes. The performance values of this drive unit may be lower upon delivery. They can be increased and customized using the eBike Flow app. It should be noted that higher performance values can lead to increased wear and have a negative effect on the range.
The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer. A maximum of four riding modes, in addition to Off mode, can be activated. Using the custom riding modes, the modes can be configured according to the individual needs of the rider, via the eBike Flow app.
Exception gear shift detection: eShift hubs.

¹⁰ Maximum values: Deviations possible, depending on hub gear system and battery. The max. support of 600% relates to speeds of up to 15 km/h and can be increased in the Race, Turbo, eMTB+, Cargo and Auto riding modes.
The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer.
A maximum of four riding modes, in addition to Off mode, can be activated. The individual riding modes can be configured according to the individual needs of the eBike rider via the eBike Flow app.
Exception gear shift detection: eShift hubs

¹¹ The weight refers exclusively to the motor weight of the Hub Line – without control unit and cadence sensor. The support is based on intelligent sensor fusion, which is why no percentage figure is given for maximum support. Maximum values: Deviation possible depending on battery. The rider can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the dealer. A maximum of four riding modes, in addition to Off mode, can be activated.

Performance Line CX

BDU374Y (Gen 4) | Mid-drive motor

Powerful, dynamic drive unit for intuitive handling and a unique riding experience.

The smart system
Max. 85 Nm
Max. 600 W
Max. 600%

Current product

Performance Line CX

BDU384Y (Gen 5) | Mid-drive motor

For a unique eMTB experience: The ideal system for demanding riders.

The smart system
Max. 120 Nm
Max. 750 W
Max. 600%

About the product

Performance Line CX

BDU450CX | Mid-drive motor

The powerhouse among drive units.

Bosch eBike system 2
Max. 85 Nm
Max. 600 W
Max. 340%

About the product

All drive units

Up to 600% support only up to 20 mph. Available in Race, Turbo, eMTB+, Cargo, and Auto riding modes. Details on the compatibility of your eBike can be found in the eBike Flow app.
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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. Trick Check is not active by default on the Kiox 300, Kiox 500 and Purion 200 displays and must be activated manually under > "Settings > Display > Trick Check".
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Extended Boost is already available for the following drive units of the smart system in Race, eMTB+, and eMTB riding modes, but cannot be customized: Performance Line CX-R (BDU386Y), Performance Line CX Race Limited Edition (BDU376Y), Performance Line CX (BDU384Y), Performance Line CX (BDU374Y), Performance Line SX (BDU314Y). Customization will be available in every riding mode and for the following drive units of the smart system from mid-2026: Cargo Line (BDU384Y), Cargo Line (BDU374Y), Performance Line Sprint (BDU314Y). Extended Boost is not available in Limit mode.
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The Flow+ subscription is subject to a charge. When using Flow+, the General Terms and Conditions apply.
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