What tire will fit this rim on this car..1979 300SD.......I know this question has been asked because the thread was up on here but has disappearred. I printed it once but can't find it any longer.

Interested in maintaining speedo accuracy while having the widest tire that fits this car with the 15" x 7" Ronal R-9 with ET23 offset.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

I do believe that R-9 Ronals were available in several different offsets, so the W116 experts would have to know which offset you have in order to address your possible clearance issues.