The Performance Line Speed is depicted on a white background.

Max. torque

100

600

Max. motor power

100

340

Max. support

0.8

2.9

Rounded weight

Reach your destinations with powerful support and maximum efficiency.

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A man approaches a busy intersection on his eBike.

Thanks to its sensors, the Performance Line Speed responds precisely and can therefore be controlled more directly.

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Cropped image of Performance Line Speed.

Auto mode automatically adjusts the support provided on climbs or during sudden headwinds.

Compact construction

The small size of the Performance Line Speed and its magnesium housing reduce the weight of the drive unit to just 6.4 lbs. This allows you to control your eBike more comfortably.

A man pushes his eBike along a sidewalk.

Walk assistance and hill start assist

With walk assistance, you can push your eBike more easily up steep sections. With hill start assist, you can start off easily – without unintentionally rolling back. For a more relaxed journey to work.

Limit mode

Ride more comfortably and reduce battery consumption: In Limit mode, your speed eBike supports you up to 20 mph. Ideal for more range and for group rides without constant braking.

Discover Limit mode

Our digital functions act as a deterrent and protect your eBike against theft. Use the free eBike Lock additional theft protection or the eBike Alarm and Battery Lock premium services that are included in the Flow+ subscription.¹

Protect eBike

Looking over the shoulder of a person holding a smartphone and activating the eBike Lock and eBike Alarm functions in the eBike Flow app.

An even more detailed map view for your display ensures better orientation and more precise navigation.²

View of a smartphone showing the battery level being set for when the goal is reached via the eBike Flow app.

Customize your riding modes in the eBike Flow app. Determine support, dynamics, speed, and torque. Choose your four favorite modes – for a perfectly coordinated riding experience.

Close-up of a handlebar with Kiox 500 and a smartphone, where you can customize the riding modes.

After your ride, the eBike Flow app shows you how many CO₂ emissions you have saved compared to traveling the same distance by car.³

Looking over the shoulder of a person viewing their route in the eBike Flow app.

Keep an eye on the current charge level of your battery in the eBike Flow app at all times and check when it is fully charged from the comfort of your sofa – for even more convenience during route planning.²

A woman in an orange top sits cross-legged on a gray sofa and looks at her smartphone. In the background, you can see a plant.

Updates ensure that your eBike is always up to date and its performance is enhanced. You can easily download new eBike functions and transfer them to your eBike via Bluetooth.

Over-the-shoulder view of a person holding a smartphone with the eBike Flow app open.

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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.

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Kiox 500

Kiox 500 is extra-large, intelligent, and robust - making it the ideal display for your next ride, including navigation function and notification tones.

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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.

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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.

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Technical data
	Performance Line Speed (BDU378Y)⁸
eBike system	The smart system
Shifting system type	Derailleur system, hub gear system
Maximum support (%)	340 %
Maximum possible drive torque	85 Nm
Start-up behavior	fast, performance
Max. supported speed	28 mph
Backpedal braking	x
Walk assistance with Hill Hold	y
Hill start assist with Hill Hold	y
Gear shift detection	Hub gear system: no Derailleur system: yes
Weight, approx.	6.4 lbs
Rated continuous output	250 W
Maximum power	600 W
Max. power at a cadence of 70 rpm	600 W
Max. power-to-weight ratio, approx.	93 W/lb

¹ Maximum values: deviations possible, depending on the hub gear system and battery. The performance values of this drive unit may be lower upon delivery. They can be increased and customised using the eBike Flow app. It should be noted that higher power values can lead to increased wear and have a negative effect on the range. Actual power is marginally less than 750 W to ensure regulatory compliance.
The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

² Maximum values: deviations possible, depending on the 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 power values can lead to increased wear and have a negative effect on the range. Actual power is marginally less than 750 W to ensure regulatory compliance.
The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

³ Maximum values: deviations possible, depending on the hub gear system and battery. The values can be set individually to a limited extent using the eBike Flow app. It should be noted that higher power values can lead to increased wear and have a negative effect on the range. Actual power is marginally less than 750 W to ensure regulatory compliance.
The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

⁴ Maximum values: deviations possible, depending on the hub gear system and battery. The performance values of this drive unit may be lower upon delivery. They can be increased and customised using the eBike Flow app. It should be noted that higher power values can lead to increased wear and have a negative effect on the range. Actual power is marginally less than 750 W to ensure regulatory compliance.
The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

⁵ Only available in New Zealand and the USA. Maximum values: deviations possible, depending on the hub gear system and battery. The max. support of 600% relates to speeds of up to 9.3 mph and can be increased in the Race, Turbo, eMTB+, Cargo and Auto riding modes. On delivery, the performance values of this drive unit can be lower. They can be increased and individually adjusted with the help of the eBike Flow app. It should be noted that higher performance values can lead to increased wear and can have a negative impact 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. With the help of the individual riding modes, the modes can be configured according to the individual needs of the rider via the eBike Flow app. Exception regarding gear shift detection: eShift hubs

⁶ Maximum values: deviations possible, depending on hub gear system and battery. The maximum support of 600% relates to Speeds of up to 20 mph 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 Maximum values: deviations possible, depending on the hub gear system and battery. The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

⁸ Maximum values: deviations possible, depending on the hub gear system and battery. The values can be set individually to a limited extent using the eBike Flow app. The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

⁹ Maximum values: deviations possible, depending on hub gear system and battery. The maximum support of 600% relates to Speeds of up to 20 mph 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 maximum support of 600% relates to speeds of up to 20 mph 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. 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

^¹¹ Only available in New Zealand and the USA. Maximum values: deviations possible, depending on the hub gear system and battery. The performance values of this drive unit may be lower upon delivery. They can be increased and customised using the eBike Flow app. It should be noted that higher power values can lead to increased wear and have a negative effect on the range. The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

¹² Maximum values: deviations possible, depending on the hub gear system and battery. The performance values of this drive unit may be lower upon delivery. They can be increased and customised using the eBike Flow app. It should be noted that higher power values can lead to increased wear and have a negative effect on the range.
The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

¹³ Maximum values: deviations possible, depending on the hub gear system and battery. The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app. There is no backpedal function with the derailleur system, but it is optional for the hub system.
Exception regarding gear shift detection: eShift hubs

¹⁴ Maximum values: deviations possible, depending on the hub gear system and battery. The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app. There is no backpedal function with the derailleur system, but it is optional for the hub system.
Exception regarding gear shift detection: eShift hubs

¹⁵ Only available in New Zealand and the USA. Maximum values: deviations possible, depending on the hub gear system and battery. The max. support of 600% relates to speeds of up to 9.3 mph 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 power values can lead to increased wear and have a negative effect on the range. Actual power is marginally less than 750 W to ensure regulatory compliance.
The eBiker can activate/deactivate the riding modes via the eBike Flow app, the bicycle manufacturer or the specialist 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 eBiker, via the eBike Flow app.
Exception regarding gear shift detection: eShift hubs

¹⁶ The weight refers exclusively to the motor weight of the Hub Line – without control unit and cadence sensor. No support factor: The support is based on intelligent sensor fusion, which is why no support factor is specified. 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 Speed

BDU378Y | Mid-drive motor

Getting there fast: With the Performance Line Speed, support up to 28 mph is achievable for speed eBikes.

The smart system
Max. 85 Nm
Max. 600 W
Max. 340%

Current product

Performance Line Speed

BDU388Y | Mid-drive motor

Stronger support for faster arrivals: The perfect drive unit for commuters.

The smart system
Max. 100 Nm
Max. 750 W
Max. 600%

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Performance Line Speed

BDU490P | Mid-drive motor

Fast and dynamic.

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

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All drive units

The Flow+ subscription is subject to a charge. When using Flow+, the General Terms and Conditions apply .
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To use this function, you need a paid Flow+ subscription. When using Flow+, the General Terms and Conditions apply.
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The emissions are saved during the use phase. The calculation is based on the Federal Environmental Agency's assumption (2022): car = 9.4 oz CO₂/mi, eBike = <0.2 oz CO₂/mi.
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