I changed the wheel bearings, touring with 50,000 miles and they were due, I bought used and don’t know if they’ve ever been changed, fronts weren’t too bad, but the inside bearing on the rear had that smell, ooh ooh that smell can’t you smell that smell, it was done, the rear needed taking apart and cleaned it was just about to push the circlip right off with build up under the ring, anyway I post to remind touring guys with comparable miles get them changed. If nothing else take rear apart and clean it. Those rubber bushings make a real mess in there.