Can anyone tell me if the rim diameter indicated on the tyre wall is
also the diameter of the wheel? The tyre is a 255/35 ZR18, but I
thought the 330Ci came with 17" as standard. It's a 2002 E46. Sorry,
Yes to the first question.
Sorry, I don't have the specifications for the 2002 E46. However, in 2004,
on option for the Sport package was 225/40R-18 front and 255/35R-18 rear.
This option had 18x8.0 wheels on the front and 18x8.5 wheels on the rear.
That means that the wheel diameter was 18 inches and the width at the
tire-wheel joint was 8.0 inches on the front and 8.5 inches on the rear.
The BMS brochure does not specify the tire speed rating (the Z above).
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