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Maybe I am the worst at searching the forums, but I really tried. Does anyone have the exact specs for the 18" Sport wheels (that come with the Sport Package), including central bore?

I am wondering if my old Neuspeeds will fit......
 

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The 18 is an 18x8 with an offset of 33mm, and a center bore of 65.1mm. Weight is 26.6 lbs.
 

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Will 18x9 with 245/40/18 fit? Does an offset of 27mm keep the stock scrub radius?
 

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2018 Q4 with Fiamenghi Ti exhaust, Race Mod, and Tecnico wheels.
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Will 18x9 with 245/40/18 fit? Does an offset of 27mm keep the stock scrub radius?
The lugs are 5x110, 14mm. Note that Giulietta has almost exactly the same specs and can be ordered with an 18" wheel styled like the Giulia 19" sport 5 holes, but drilled for 12mm lugs. Giulia needs ~1500pounds/wheel weight rating to handle a full load of passengers and luggage.

I am not sure if the spokes need to be curved to clear the calipers.

Up to 255 40R18 should fit at least if you have the right offset. 245 40R18 will cost a little bit off the diameter of the wheel relative to stock. Racer Z has 255 35R19s on all 4 corners mounted on the 5 hole 19x9s. He says this is a tight squeeze in the front but no rubbing. IIRC the 19x9 wheels have an offset of 44.5mm.

For best handling most 255mm wide tires should be mounted on a 9.5" wide rim. It is not 100% clear to me if a 9.5" wide rim will fit but from the pictures that I have seen it seems likely.
 
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