Would ET 40 be without problems with a 16”wheel?

Technical Area Wheels, Tyres & Brakes
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  1. My model of MX-5 is: __nc1
  2. I’m based near: __
  3. I’m looking for technical help or recommendations on: __
  4. just as it says. I believe the standard is 48? Thanks…
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NC OEM wheels are a 55 offset.

Would be fine to run an ET40, although might look a little odd if the car is running a standard suspension ride height.

So if the 40 offset wheel is the same width, it would stick out 15mm further.

16" wheels are 6.5" wide.

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Thanks Wardy! They sounded too good to be true anyway.

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All depends on width as stated. You need a calculator to work it out most easily https://www.1010tires.com/Tools/Wheel-Offset-Calculator . I have et42 on a 17x8 inch wheel on the nc3 and no issues. These are 26mm further out with a 215/45 tyre and lowered.

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That looks a better solution than the (surprisingly expensive) addition of spacers, if you are changing wheels anyway. Spacers must add a lot of unsprung weight?
I’ve added the calculator to my MX5 Book of useful links. Thanks.

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No problem :+1:t2:.
I weighed the wheels with tyres against a standard set of nc 17s and the weight gain was 200g per corner (17kg new vs 16.8kg originals) Not bad for an inch wider wheel with a larger tyre.

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That’s quite a result! I’m more looking for feel. I’ve got more than enough grip for my level of skill!