Software Update Bosch Performance Line CX: Free Turbo Boost
Starting July 2025, owners of e-bikes equipped with the 5th generation Bosch Performance Line CX motor (BDU384Y) can download a free performance update via the Bosch eBike Flow app and adjust:
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Maximum power up to 750 W (instead of the default 600 W)
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Torque up to 100 Nm (previously 85 Nm)
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Maximum support level up to 400% (instead of 340%)
The update is delivered over the air, conveniently via your phone. A slider in the app allows users to fine-tune the motor output to suit their needs.
Advantages
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Noticeable performance boost in more demanding terrain
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Full control over performance settings
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No workshop visits or hidden fees
Considerations
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Increased wear on the chain, drivetrain, and motor
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Higher battery consumption = shorter range
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If full power isn’t necessary, consider using lower settings
Bosch Performance Line CX R: The Peak of eMTB Performance
Bosch introduces a new version of the motor – CX R (BDU386Y) – the most powerful eMTB motor in their lineup:
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100 Nm torque
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750 W peak power
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400% rider support
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Weighs only approximately. 2.7 kg, thanks to magnesium casing, titanium axle, and ceramic bearings
The Race mode, exclusive to CX R motors, delivers instant support with zero delay and features Extended Boost for technical uphill sections. A highly responsive pedaling sensor tracks input 1,000 times per second, drastically improving responsiveness and stability.
The CX R is a top-tier choice for ambitious riders demanding extreme power and precise control.
New Riding Mode: eMTB+ for Everyone
Alongside the performance upgrade, Bosch introduces a new eMTB+ mode, available for both CX and CX R:
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Bridges the gap between the standard eMTB mode (focused on range) and Race mode (maximum output)
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Uses Dynamic Control to adaptively modulate support up to 400% of rider input
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Blends sensitive handling with powerful drive
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Extended Boost functions as responsively as in Race mode (though Race remains exclusive to CX R)
This mode is perfect for riders seeking a mix of power and precise control in challenging terrain.
