Operation - Bosch BDU3320 Original Operating Instructions

English – 8
An operating unit from the system generation the
smart system is required for starting operation of the
eBike. Observe the operating instructions for the op-
erating unit and additional components from the sys-
tem generation the smart system where necessary.
Notes on cycling with your eBike
When does the drive take effect?
The drive assists your cycling only when you are ped-
aling. If you do not pedal, the assistance will not work.
The drive output always depends on the pedaling
force and cadence that you apply.
With lower force applied or a less frequent cadence,
the assistance provided will be lower than that sup-
plied at higher force or a more frequent cadence. This
applies irrespective of the assistance level.
The drive automatically switches off at speeds over
20/28 mph. When the speed falls below 20/28 mph,
the drive automatically becomes available again.
An exception applies to the push assistance function,
in which the eBike can be pushed at low speed with-
out pedaling. The pedals may rotate when the push
assistance is in use.
You can also use the eBike as a normal bicycle with-
out assistance at any time, either by switching off the
eBike or by setting the assistance level to OFF. The
same applies when the eBike battery is drained.
Interaction of the drive unit with the gear-shifting
You should shift through gears on an eBike in the
same manner as when using a normal bicycle (ob-
serve the operating instructions of your eBike with re-
gard to this point).
Irrespective of the type of gear shifting, it is advisable
that you briefly reduce the pressure on the pedals
when changing gear. This will aid gear shifting and re-
duce wear on the powertrain.
By selecting the correct gear, you can increase your
speed and range while applying the same amount of
force.
0 275 U07 3D2 | (17.03.2023)

Operation

Gaining initial experience
We recommend that you gain initial experience with
the eBike away from busy roads.
Test the various assistance levels, beginning with the
lowest level. As soon as you feel confident, you can
ride your eBike in traffic like any other bicycle.
Test the range of your eBike in different conditions
before planning longer and more demanding trips.
Influences on range
The range is affected by a number of factors, such as:
– Assistance level
– Speed
– Gear shifting behavior
– Tire type and tire pressure
– Age and condition of the eBike battery
– Route profile (gradients) and conditions (road sur-
face)
– Headwind and ambient temperature
– Weight of eBike, rider and luggage
For this reason, it is not possible to predict the range
accurately before and during a trip. However, as a
general rule:
– With the same assistance level on the drive: The
less energy you need to exert in order to reach a
certain speed (e.g. by changing gears optimally),
the less energy the drive will consume and the
higher the range per battery charge will be.
– The higher the selected assistance level under oth-
erwise constant conditions, the smaller the range
will be.
Bosch eBike Systems