One and a half inches thick in the walls and extremely heavy, sounds like runflat to me whether marked RF or not.
I would also be curious to know where they were made and if they were intended for American or British wheels. If they are American it would go some way to explaining why they are so difficult to remove.
David
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Hell no! I'm not that old!
Last edited by motto; 22-10-15 at 21:14.
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