General topics » Fork tube scoring

I noticed some scoring or some other type of surface marking on my left fork tube. I can feel very minute scratches in the metal when running a thumbnail over it. The fork seals seem to be fine as there's no fork oil evident anywhere. The bike is a 2016 with ESA, 12,600 miles. Still have a year left on the warranty, will giving the shop a call next week.

Anyone else experienced this with their RS? Any ideas, suggestions?
Thanks

Some pictures

Try taking it off with WD40 or some other light lubricant. Buff it lightly with a rag damped with the solvent. And see what happens.

Frank

Can't tell from a photo if the chrome is scratched or this is something like a tar spot smeared on top of the chrome. The spots of chrome in the middle of the blob which interrupt the rubbed-in grain suggest the latter. Try Duckbubbles' suggestion, clean with a small dab of WD40 or acetone.

I am inclined to agree that it is something on top of the chrome, I believe there is usually a layer of copper under the chrome as part of the plating process and none of that is evident so I don't think it's the chrome wearing. WD40 looks like the best bet as suggested.

Thanks for all the replies and suggestions. WD40 didn't seem to even touch it, but some MEK and a little persistence I was able to get it cleaned up. Had to take the front fender as the muck was on the inside side of the tube too. Nasty stuff whatever it was.