Adapter rings to mount modern 5.25" speakers to the rear "shelf" position in a W123 sedan without modification to the speakers OR the car itself.

This is sized for Rockford Fosgate Prime RX1525x2 speakers. It will *likely* fit other speakers with a 4-hole mounting pattern that can accommodate 135.5mm center-to-center mounting. If in doubt, reach out: if it doesn't fit, there's a good chance I can make you a custom one.

Included:
(2x) Adapter Rings (white in photos for visibility: currently making them in black. you won't see it after installation)
(2x) sets new mounting screws for the speakers
(2x) sets new mounting screws for the grille

NOT INCLUDED, you'll need to provide:
Grilles: you will need to provide your own, original-specification ones. They're available on eBay.
Speakers: as mentioned, these are sized to fit Rockford Fosgate RX1525x2

Possible fits for:
W123 coupe
R107
W116
I haven't tried it, but they seem to use the same outer grille, so I suspect they would work? Feel free to reach out and we can figure it out together. :)

MADE TO ORDER, so please be patient and give me a few days. Aiming to have a first batch shipping around April 14.