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APRILIA SX 125 User Manual

APRILIA SX 125
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Page #165 background image
Insert the anti-vibration buffer in the wheel hub.
Fit the entire final transmission unit on the wheel, manually rotate the crown gear to right and left and
check the clearance between the anti-vibration buffer and the hub. Replace the anti-vibration buffer if
excessive clearance is found.
CROWN GEAR
Check the toothing of the crown and the pinion. If excessive wear is found, replace: the crown, the pinion
and the drive chain.
CAUTION
REPLACE ALL THREE PARTS TO PREVENT EARLY WEAR OF NEW COMPONENTS.
Installing the rear wheel
Position the rear wheel.
Position the chain.
Working on both sides, insert the centring shim washers.
Working from the left side, insert the wheel axle.
CAUTION
DO NOT INVERT THE RIGHT AND THE LEFT CHAIN TENSIONERS.
Working on the right side, position the washer and screw but do not tighten the wheel axle
fixing nut.
Adjust the chain tension operating the set screws.
CAUTION
AFTER REFITTING, OPERATE THE REAR BRAKE LEVER REPEATEDLY AND CHECK THAT THE
BRAKING SYSTEM OPERATES CORRECTLY.
CAUTION
CHECK THAT THE WHEEL IS CENTRED.
Tighten the wheel axle fixing nut.
See also
Adjusting
RX SX 125 Suspensions
SUSP - 165

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APRILIA SX 125 Specifications

General IconGeneral
Displacement124.2 cc
Cooling SystemLiquid cooled
Fuel SystemElectronic fuel injection
Transmission6-speed
Rear SuspensionMonoshock
Front Tire100/80-17
Rear Tire130/70-17
Compression Ratio12.5:1
StarterElectric
ClutchWet multi-plate
Front Brake Disc300 mm
Rear Brake Disc220 mm
Dry Weight134 kg
Bore x Stroke58 mm x 47 mm
Max Power11 kW (15 HP) @ 10, 000 rpm
Front Suspension41 mm USD fork
Front BrakeSingle 300 mm disc
Rear BrakeSingle disc
Fuel Tank Capacity7 liters
FrameSteel perimeter
Engine TypeSingle-cylinder, 4-stroke

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