No date on the locknuts, unfortunately.
Say, speaking of these great hubs: what should I do with the grease/oil ports? Should I periodically put grease or oil in there? I've had them for half a year and am riding them through this winter. I wipe down my bike every time it's messy out, but I'm certain that moisture is getting under the caps of the grease/oil ports.
What do people usually do with these in terms of maintenance?