Bosch Drive Unit BDU3360

The Bosch BDU3360 drive unit is a mid-drive motor from the Performance Line series in the "Smart System". It delivers a maximum torque of 75 Nm , provides support of up to 340% of the applied pedaling force, and is designed for pedelecs with a maximum speed of 25 km/h.

• It belongs to the generation of Performance Line drives with 75 Nm of torque.

• It is significantly more powerful than entry-level drives from Bosch (e.g. Active Line) with approximately 40-50 Nm of torque, but not as “extreme” as, for example, the Performance Line CX with 85-100 Nm for e-MTBs .

• Rated continuous power: 250 W,

  Maximum power: 600 W

• Protection class: IP54 – robust against environmental influences

• Operating temperature: -5 °C to +40 °C (according to data sheet)

• Intended use: Pedelecs with 25 km/h assistance (not S-Pedelecs)

Areas of application & advantages

The BDU3360 is specifically designed for city and trekking e-bikes where powerful, but not excessive, assistance is required. Thanks to its 75 Nm of torque and Bosch's multi-sensor concept, it is ideal for:

• Daily commutes with varying conditions (gradients, headwinds)

• Bike tours with luggage or longer distances

• Suitable for use at moderate to sporty speeds, excluding heavy-duty applications such as cargo bikes or sporty e-mountain bikes.

The advantages include:

• Quiet operation : Bosch describes the Performance Line motor as having a "barely audible" gearbox.

• Adjustment via app : In the Smart System, settings can be changed via the eBike Flow app .

• Robustness : IP54 protection rating and design for everyday use.

Important information for the company

• During installation and wheel changes, ensure that, for example, sensor and magnet arrangements are correctly mounted and that there are no magnetic interferences.

• The motor assistance only engages when you actually pedal – no pedaling, no assistance.

• Attention: In many cases, a replacement or upgrade of the drive unit may only be carried out as a 1:1 exchange, as compatibility systems (hardware/software) are strict.

• Since control units, batteries and display are closely coupled in the Smart System, installation should be carried out by qualified specialist retailers to ensure optimal functionality.