lived in SoCal prior to Arizona, more moisture there than here and still my bearings didn't look like that. could have been a bad batch of grease that caused it, an isolated incident... doubt it being a wide spread issue with All Balls bearings after all these years of using them by myself and many others. this can happen to any manufacturer getting and using a faulty part, sub component and or required lubricant specified in the supporting technical document for that part, sub component, etc... just saying. I'd say let the OCD side of everyone come out when it comes to your motorcycles. go the extra mile in looking the bike over, as well as cleaning her up. it's a good thing you found it now rather than later and you're taking care of it right away, hats off to ya:up: