KTM 390 Adventure 2020 Owner's Manual page 192

15 WHEELS, TIRES
190
Long-life grease ( p. 271)
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Clean the contact areas on the brake caliper bracket and link
fork.
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Mount the damping rubber and rear sprocket carrier on the
rear wheel.
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Insert the spacers.
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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.
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Position the chain guard.