GeorgeM

964Q has enlightened me... thanks!

968 M030 option wheels were also ET65/55 17" Cup Is, without RDK sensors.

According to PET, the rear part numbers match, despite no RDK, but the front has a slightly different part number as I mentioned above, 965 362 124 05 for the 968 vice 164 05 for the 928.

Fortuna

on my 928 had such discs RDK sensors
CUP I
5 x 130mm
7.5 x 17 ET 65
965.362.164.05

9 x 17 ET 55
965.362.168.00

Fortuna

foto