APRILIA RS 660 2020 Manual page 93

NOTE
a-PRC SYSTEM SENSORS, WITH HIGH PRECISION OF READING THE TONE
WHEELS, CAN GENERATE, WITH MOTORCYCLE AT STANDSTILL AND ENGINE
RUNNING, A km/h (mi) SPEED INDICATION IN THE DIGITAL DISPLAY.
SUCH PERFORMANCE IS NORMAL AND DOES NOT CAUSE MALFUNCTIONING
OF THE a-PRC SYSTEM.
Characteristic
Distance between tone wheel and front sensor
0.5 - 2.00 mm (0.020 - 0.079 in)
Distance between tone wheel and rear sensor
0.5 - 2.00 mm (0.020 - 0.079 in)
The system is active by default. However, if the system has been deactivated, in order
to reactivate it, the user must access the specific screen using the selector button on
the right hand handlebar control set
Using the MODE navigation buttons, select level 1 if the level was set to 0.
When the ATC system is activated with the vehicle at a standstill, the a-PRC indicator
light flashes until the vehicle reaches a speed of 5 Km/h (3.1 mph).
Press the MODE UP e MODE DOWN buttons briefly to increase or decrease the ATC
level setting from "0" (minimum system intervention) to "8" (maximum system inter-
vention).
NOTE
THIS IS ALSO POSSIBLE WITH THE MOTORCYCLE IN MOTION.
CAUTION
TO GAIN FAMILIARITY WITH THE ATC SYSTEM, PREFERABLY USE LEVEL "8"
TO START WITH, THEN TRY THE OTHER LEVELS TO IDENTIFY WHICH ARE
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