Product Description And Specifications; Product Features; Operation - Bosch Kiox 300 Instruction Manual

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Product description and
specifications
Intended use
The drive unit is intended exclusively for driving your eBike
and must not be used for any other purpose.
In addition to the functions shown here, changes to software
relating to troubleshooting and functional modifications may
be introduced at any time.

Product features

Individual illustrations in these operating instructions may
differ slightly from the actual conditions depending on the
equipment of your eBike.
The numbering of the components shown refers to the illus-
trations on the graphics pages at the beginning of the
manual.
(1) Drive unit
a)
(2) Speed sensor
(3) Spoke magnet
b)
(4) CenterLock magnet
(5) Rim magnet
a) different sensor type and installation position is possible
b) different installation position is possible
Technical data
Drive unit
Product code
Continuous rated power
Torque at drive, max.
Rated voltage
Operating temperature
Storage temperature
Protection rating
Weight, approx.
The Bosch eBike system uses FreeRTOS
(see http://www.freertos.org).
A)
Bicycle lights
B)
Voltage approx.
Maximum power
– Front light
– Tail light
A) Depends on legal regulations, not possible in all country-specific
models via the eBike battery
B) When changing the bulbs, ensure that they are compatible with
the Bosch eBike system (ask your bicycle dealer) and are suit-
able for the specified voltage. Bulbs must only be replaced with
bulbs of the same voltage.
Inserting a bulb incorrectly can cause it to blow.
0 275 007 3D1 | (23.06.2021)
Drive Unit
Performance Line CX
BDU3740
BDU3741
W 250
Nm 85
V= 36
°C –5 to +40
°C +10 to +40
IP 54
kg 3
V= 12
W 17.4
W 0.6
Assembly
Checking the speed sensor (see figure A)
Speedsensor (slim)
The speed sensor (2) and its CenterLock magnet (4) or
spoke magnet (3) are mounted ex works in such a manner
that the magnet, after a turn of the wheel, moves past the
speed sensor with a clearance of at least 2 mm, yet no more
than 15 mm.
If any structural changes are made, the correct distance
between the magnet and the sensor must be complied with
(see figure A).
Note: Make sure you do not damage the sensor or the sensor
holder when fitting or removing the rear wheel.
When changing a wheel, make sure that the sensor cable is
routed so that it is not under tension and has no kinks.
The CenterLock magnet (4) can only be removed and rein-
serted up to five times.
Rim magnet
When installing a rim magnet, no sensor is required to detect
a wheel turn. The drive unit itself detects when the magnet is
close to it and calculates the speed and any other data re-
quired from the frequency of the emergence of the magnet
field.
Since the drive unit is sensitive to magnetic fields, avoid
other magnetic fields in the vicinity of the drive unit (e.g.
magnetic clipless pedals, magnetic cadence sensors, etc.) in
order to prevent disruption to the drive unit.

Operation

A control unit is required for the starting operation of the
eBike system. Observe the starting operation for the eBike
system and drive unit control in the control unit operating in-
structions.
Notes on cycling with the eBike system
When does the eBike drive work?
The eBike drive assists your cycling only when you are ped-
alling. If you do not pedal, the assistance will not work. The
motor output always depends on the pedalling force you ap-
ply.
If you apply less force, you will receive less assistance than if
you apply a lot of force. This applies irrespective of the as-
sistance level.
The eBike drive automatically switches off at speeds over
25 km/h. When the speed falls below 25 km/h, the drive
automatically becomes available again.
An exception applies to the push assistance function, in
which the eBike can be pushed at low speed without ped-
alling. The pedals may rotate when the push assistance is in
use.
You can also use the eBike as a normal bicycle without as-
sistance at any time, either by switching off the eBike system
Bosch eBike Systems