The heart of the eBike
Drive units
The eBike motor, also called the drive unit, gives you additional, electrical support depending on your effort, speed, and the selected riding mode.
The motor of your eBike
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| Technical data | New![]() | ![]() | New![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
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| Hub Line (BDU306Y)¹⁶ | Active Line (BDU332Y)¹⁴ | Active Line Plus (BDU344Y)¹⁴ | Active Line Plus (BDU334Y)¹³ | Cargo Line (BDU384Y)⁴ | Cargo Line (BDU374Y)⁷ | Performance Line (BDU346Y)⁹ | Performance Line (BDU336Y)⁷ | Performance Line Speed (BDU388Y)¹⁵ | Performance Line Speed (BDU378Y)⁸ | Performance Line Sport (BDU347Y)⁵ | Performance Line Sport (BDU338Y)¹⁰ | Performance Line Sprint (BDU314Y)¹¹ | Performance Line PX (BDU347Y)⁶ | Performance Line SX (BDU314Y)¹² | Performance Line CX (BDU384Y)¹ | Performance Line CX (BDU374Y)⁷ | Performance Line CX‑R (BDU386Y)³ | Performance Line CX Race Limited Edition (BDU376Y)⁷ | |
| eBike system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system | The smart system |
| Shifting system type | Derailleur system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system | Derailleur system, hub gear system |
| Maximum support (%) | no | 340 % | 340 % | 340 % | 600 % | 600 % | 340 % | 340 % | 600 % | 340 % | 600 % | 340 % | 400 % | 600 % | 400 % | 600 % | 600 % | 600 % | 600 % |
| Maximum possible drive torque | 45 Nm | 40 Nm | 60 Nm | 50 Nm | 120 Nm | 85 Nm | 75 Nm | 75 Nm | 100 Nm | 85 Nm | 90 Nm | 75 Nm | 60 Nm | 90 Nm | 60 Nm | 120 Nm | 85 Nm | 120 Nm | 85 Nm |
| Start-up behavior | fast, harmonious | harmonious, smooth | harmonious, smooth | smooth, calm | controlled, powerful | controlled, powerful | powerful, calm | powerful, calm | fast, performance | fast, performance | powerful, smooth | powerful, smooth | natural, sensitive | powerful, dynamic, controlled | natural, sensitive | direct, powerful | direct, powerful | direct, very powerful | direct, very powerful |
| Max. supported speed | 28 mph | 20 mph | 20 mph | 20 mph | 20 mph | 20 mph | 20 mph | 20 mph | 28 mph | 28 mph | 28 mph | 28 mph | 28 mph | 20 mph | 20 mph | 20 mph | 20 mph | 20 mph | 20 mph |
| Backpedal braking | no | Derailleur system: no Hub gear system: optional | Derailleur system: no Hub gear system: optional | optional | no | x | y | optional | no | x | x | x | x | y | x | x | x | no | x |
| Walk assistance with Hill Hold | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y |
| Hill start assist with Hill Hold | x | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y | y |
| Gear shift detection | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Derailleur system: yes Hub gear system: no | optional | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Derailleur system: yes Hub gear system: no | Derailleur system: yes Hub gear system: no | Hub gear system: no Derailleur system: yes | optional | no | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes | Hub gear system: no Derailleur system: yes |
| Weight, approx. | 5.1 lbs | 6.4 lbs | 6 lbs | 7.1 lbs | 6.2 lbs | 6.4 lbs | 6.2 lbs | 7.1 lbs | 6.2 lbs | 6.4 lbs | 6.4 lbs | 7.1 lbs | 4.4 lbs | 6.4 lbs | 4.4 lbs | 6.2 lbs | 6.4 lbs | 6 lbs | 6 lbs |
| Rated continuous output | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W | 250 W |
| Maximum power | 400 W | 586 W | 600 W | 600 W | 750 W | 600 W | 600 W | 600 W | 750 W | 600 W | 700 W | 600 W | 600 W | 700 W | 600 W | 750 W | 600 W | 750 W | 600 W |
| Max. power at a cadence of 70 rpm | 400 W | 290 W | 366.5 W | 370 W | 730 W | 600 W | 440 W | 550 W | 730 W | 600 W | 550 W | 550 W | 400 W | 550 W | 400 W | 730 W | 600 W | 730 W | 600 W |
| Max. power-to-weight ratio, approx. | 79 W/lb | 91 W/lb | 222 W/lb | 85 W/lb | 122 W/lb | 93 W/lb | 97 W/lb | 85 W/lb | 122 W/lb | 93 W/lb | 109 W/lb | 85 W/lb | 136 W/lb | 109 W/lb | 136 W/lb | 122 W/lb | 93 W/lb | 126 W/lb | 98 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.




Renowned Bosch quality
Our drive units are high-quality, powerful, and lightweight. They provide efficient, low-noise support and thus ensure a natural riding experience. They are also reliable and robust – making them ideal for every ride.
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Higher performance values also mean higher wear and a smaller range – we leave this individual decision up to you. The eBike manufacturer can factory-set a limitation on the maximum performance values. Then, in the eBike Flow app, you can only set the maximum values specified by the manufacturer.
BackThe support is based on intelligent sensor fusion, which is why no percentage figure is given for maximum support.
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