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Verfügbare Sprachen
Verfügbare Sprachen
braking pressure of the front brake is controlled and there-
fore stabilises the riding situation. The ABS must not be
modified or removed.
Product features
The numbering of the components shown refers to the illus-
trations on the graphics pages at the beginning of the
manual.
Individual illustrations in these operating instructions may
differ slightly from the actual conditions depending on the
equipment of your eBike.
(1) ABS control unit
(2) Operating unit with ABS indicator light
(3) Front wheel brake lever
(4) Brake caliper
a)
(5) Wheel speed sensor
(6) Sensor disc
a) The attachment position may vary depending on the eBike man-
ufacturer.
Technical data
ABS
Product code
Operating temperature
Storage temperature
Protection rating
Weight, approx.
Note: For a description of the brakes and how they function,
please refer to the instructions provided by the brake manu-
facturer.
How it works
When the front-wheel brake is operated, the ABS function
identifies the tendency of the front wheel to block and stop
turning. The ABS decreases the braking pressure and
thereby stabilises the eBike. The detection is based either
on wheel speed sensors on the front and rear wheels, or on a
wheel speed sensor on the front wheel and an inertial sensor
system in the drive unit.
Once the eBike has been stabilised, precise increases in
braking pressure bring the front wheel back up to the locking
limit. This causes the lever to move a small distance towards
the handlebars with every braking impulse. If the front wheel
is tending to lock again, the pressure is reduced as before.
This process is repeated in order to keep the front wheel at
the grip limit at all times and therefore optimise exploitation
of the coefficient of friction between the tyres and the
ground.
A certain degree of pulsing or vibrating in the brake lever is
considered normal and can be expected during operation of
the ABS system.
Bosch eBike Systems
Magura
Tektro
BAS3311
BAS3321
BAS3511
BAS3521
°C
–5 to +40
–5 to +40
°C
+10 to +40
+10 to +40
IP55
g
215
The ABS function is ended when one of the following hap-
pens:
– The hydraulic accumulator in the ABS control unit is full.
– The eBike comes to a stop.
– The rider releases the brake.
Due to the way the system operates, the ABS can only step
in from a minimum speed of 5 km/h.
In addition to the ABS function, a system has been integ-
rated that detects when the rear wheel lifts off the ground
during heavy braking. This means that, within certain limits,
forward pitchover can be counteracted during very hard
braking manoeuvres.
For ABS Pro in the Race application, the detection of the
rear wheel lifting off the ground is not available during heavy
braking.
However, the rear wheel lifting off the ground can be used
for various sporty cycling manoeuvres, if required.
Fitting
The anti-lock braking system is fully assembled by the manu-
facturer and must not be modified.
Warning! If you would like to attach other accessories to the
handlebars, bear in mind that the handlebars must be able
to turn freely at least 60° to either side from the centre posi-
tion. Steering limiters may need to be fitted.
Operation
It is not permitted to attach additional holders to the
IP55
u
fork, e.g. for panniers, in conjunction with an ABS.
215
Note: You can change the ABS function in the eBike settings:
Select the application you require or switch off the ABS func-
tion if necessary.
Before every journey
Check to ensure that the ABS indicator light is working cor-
rectly on the display and/or operating unit whenever you
switch the eBike on. You can find more information about
this in the section entitled (see "ABS indicator light",
page English – 4).
Please check the condition and roadworthiness of the eBike
before every journey. It is the eBike rider's responsibility to
check the eBike is in perfect working order and fully road-
worthy before every journey. Using the eBike with known
faults increases the risk of injury to the rider.
Always check to ensure that the front- and rear-wheel brakes
are working correctly before setting off.
Check to ensure that the thickness of the brake pads and the
brake discs meets the manufacturer's specifications before
setting off.
Check the ABS control unit is fitted securely to the fork.
Before the first journey
Familiarise yourself with how the brakes and ABS work and
how they respond when you actuate them, for example by
practising your braking technique away from busy roads.
English – 3
0 275 008 3AS | (17.02.2024)
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