APRILIA RS 660 2020 Manual page 143

NESS IS NOT CUSHIONED AND IS SENT TO THE HANDLEBAR, THUS REDUC-
ING GRIP AND ROAD HOLDING SPECIALLY WHEN CORNERING.
ON THE OTHER HAND, AN UNDER-INFLATED TYRE CAUSES THE CONTACT
PATCH TO INCLUDE A LARGER PORTION OF THE TYRE SIDE WALLS. IF SO,
THE TYRE MIGHT SLIP ON OR GET DETACHED FROM THE WHEEL RIM, RE-
SULTING IN LOSS OF CONTROL OVER THE VEHICLE.
EVENTUALLY THE VEHICLE MIGHT SKID IN A BEND.
CHECK THE SURFACE CONDITION AND WEAR BECAUSE POOR TYRE CON-
DITION COULD COMPROMISE GRIP AND HANDLING OF THE VEHICLE.
SOME TYRE TYPES APPROVED FOR THIS VEHICLE FEATURE WEAR INDICA-
TORS.
THERE ARE SEVERAL TYPES OF WEAR INDICATORS. CONSULT YOUR DEAL-
ER ON METHODS TO CHECK FOR WEAR.
CARRY OUT A VISUAL INSPECTION FOR TYRE WEAR AND TEAR, REPLACE
TYRES WHEN WORN.
WHEN TYRES ARE OLD, THE MATERIAL MAY HARDEN AND NOT PROVIDE
ADEQUATE ROAD HOLDING, EVEN IF TYRES ARE STILL WITHIN THE WEAR
LIMIT. REPLACE TYRES IF THIS OCCURS. REPLACE THE TYRE IF IT IS WORN
OR IF THERE IS A PUNCTURE LARGER THAN 5 mm (0.197 in) IN THE TREAD
AREA.
WHEEL MUST BE BALANCED AFTER A TYRE IS MENDED.
USE ONLY TYRE SIZES INDICATED BY THE MANUFACTURER. DO NOT FIT
TYRES WITH INNER TUBES ON RIMS FOR TUBELESS TYRES OR VICE VERSA.
CHECK THAT THE INFLATION VALVES HAVE THEIR CAPS FITTED TO AVOID
UNEXPECTED FLAT TYRES.
REPLACEMENT, REPAIR, MAINTENANCE AND BALANCING OPERATIONS
ARE HIGHLY IMPORTANT AND SO THEY SHOULD BE CARRIED OUT USING
THE SPECIFIC TOOLS AND WITH THE ADEQUATE KNOWLEDGE. HAVE YOUR
TYRES AND WHEELS SERVICED AT AN AUTHORISED DEALER OR A SPECI-
ALISED TYRE WORKSHOP.
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