KTM 390 Duke 2015 COL Owner's Manual page 153

18 CLEANING, CARE
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Treat the engine, swingarm, and all other bright and zinc-plated parts (except for the
brake discs) with a wax-based corrosion inhibitor.
Info
Corrosion inhibitor is not permitted to come in contact with the brake discs as
this would greatly reduce the braking force.
–
Clean the chain. ( p. 81)
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