Howdy,
I had posted a similar concern when changing the front tire and now as I replace the rear tire I've found the same issue. The plating on the spacer in the area where it contacts the rubber seal is peeling away. If it gets to the section that contacts the rubber seal it could cause it to tear compromising the seal. Something to check when replacing tires. And yes, I always grease the lip seal when changing tires.
Later,
Norm
I had posted a similar concern when changing the front tire and now as I replace the rear tire I've found the same issue. The plating on the spacer in the area where it contacts the rubber seal is peeling away. If it gets to the section that contacts the rubber seal it could cause it to tear compromising the seal. Something to check when replacing tires. And yes, I always grease the lip seal when changing tires.
Later,
Norm