Has anyone experienced this..Bike has been acf'd and handful of outings in winter. Had some recent runs(no flood touring) and rocker heads covers now look like the have corroded under the paint. I first thought I had been peppered by some stones from a car/lorry in front, but the only marks are on the covers, no marks on cover protectors, forks etc.
Takes all sorts I guess but easily sorted if you don't get anywhere with a claim. I bit of a rub down and some hammerite or get them powder coated and the jobs a carrot