2010 revelation race dual air. Lowers off for cleaning and lubing. The stanchions have a 10mm wide ring in the anodising where it is discoloured (not worn) - this ring starts at 160mm and down to 170mm (seems to be in aligmnet with the foam rings)
These are dead clean and are cleaned/lubed every 20hrs or so.
Is this problematic/normal/wrong?



