Checking The Brake Discs - KTM RC 390 2018 Owner's Manual

14 BRAKE SYSTEM
14.2

Checking the brake discs

Warning
Danger of accidents Worn-out brake discs reduce the braking effect.
–
Make sure that worn-out brake discs are replaced immediately. (Your authorized KTM workshop will be glad to help.)
Warning
Danger of accidents Driving aids can only prevent a rollover within the physical limi-
tations.
It is not always possible to compensate for extreme riding situations, for exam-
ple with luggage loaded with a high center of gravity, varying road surfaces, steep
descents or full braking without disengaging the gear.
–
Adapt your riding style to the road conditions and your driving ability.
The ABS operates with two independent brake circuits (front and rear brakes). During nor-
mal operation, the brake system operates like a conventional brake system without ABS.
When the ABS control unit detects a locking tendency in a wheel, ABS begins regulating
the brake pressure. The regulating process causes a slight pulsing of the hand and foot
brake levers.
ABS warning lamp 3 must light up after the ignition is switched on and go out after start-
ing off. If it does not go out after starting off or if it lights up while riding, this indicates a
fault in the ABS. In this case, the ABS is no longer enabled and the wheels may lock during
braking. The brake system itself stays functional; only ABS control is not available.
The ABS warning lamp may also light up if the rotating speeds of the front and rear wheels
differ greatly under extreme riding conditions, for example when making wheelies or if the
rear wheel spins. This causes the ABS to switch off.
To reactivate the ABS, the vehicle must be stopped and the ignition switched off. The ABS
is reactivated when the vehicle is switched on again. The ABS warning lamp goes out when
you start off.
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