KTM 125 Duke 2018 Owner's Manual page 155

Long-life grease ( p. 238)
–
Clean the contact areas of the brake caliper support and
swingarm.
–
Mount the rubber damper and rear sprocket carrier on the rear
wheel.
–
Insert the spacers.
–
Position the rear wheel.
The brake linings are correctly positioned.
–
Push the rear wheel forward as far as possible and lay the
chain on the rear sprocket.
–
Position the chain guard.
WHEELS, TIRES 14
153