Bongo Fury

I am lucky enough to have a set of Nissan alloys ( Yes I am being cynical lol) - I measured the wheel centers and thought I'd get away with 52mm inner centers which seem standard for Mazda - I have failed miserably they don't fit. Am on the hunt for a 50mm Mazda (inner) center cap -- my last resort will be blank caps and Mazda stickers. Any suggestions (polite ones) welcomed! Thank you.

Dunno if this helps, but I bought some adhesive wheel centre badges and fitted them to existing plastic centre caps on some alloys I once had. Looked pretty original and only cost a few quid from Japan. Search on eBay for the size you need.

Thanks worth a look/try