Join Date: May 2017
Location: Europe - Norway
I experienced the same on my bike, and made the dealership aware of this. They cleaned it up free of charge.
I also had some rust beginning in the frame number of the bike, they fixed that too at the same time.
But in general, WD40 ain't ment to be used as a rust remover or inhibitor.
Sure, it's ok to use, by all means, ain't gonna do any damage to the bike. But it ain't a "go to product" in terms of rust.
Lyoko - Black Rebel 500