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Afternoon all

Have a 2008 Spider 2.4 with 17" alloys and our local Alfa spares has given me a good deal on some Titanium 18" alloys for it.

They are 18 x 7.5J - ET 41

After advice on what size tyres. Alfa 18" apear to be 18 x 8J.

There appears to be lots advice on the web which makes things more confusing. Appears to have suggestions of 235.45.18, 225.45.18 and today my local tyre place suggested 225.40.18
 

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They look like Giulietta option wheels.
Standard Spider 18'' tyre size was 235/45 R18.
On a Giulietta it's 225/40 R18.
 

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Do it - one of the nicest wheels Alfa makes and will give your Spider a more 'updated' look. Same as the 8C Spider wheel (those come in 20" though). I just recently fitted new 18-inch tyres on my Spider and anything 225 looks silly and too narrow - I think I went with 235/40's - will confirm - they look just right in terms of filling the wheel arches and the correct stance.
 

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They are originally Giulietta wheels hence being 7.5" wide. 159/Brera/Spider 18s are 8" wide.

Another point to note, the Bolt pattern, offset and centre hub between the Giulietta and 159 etc are the same on all their wheels, BUT the Giulietta uses smaller/narrower bolts(Original Alfa bolts of M12x1.25mm Pitch) the 159 uses larger/thicker bolts(M14x1.5mm) so the bolt holes on the Giulietta wheels will be smaller and will probably require drilling out a little larger....

Just thought you should know....
 

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I have 245 40 18 97 load on my car with no rubbing or other issues, and they are the closest in circumference to your standard 225 50 17 so the speedo will still be accurate.
And there is a wider range at a lower price than the standard 235 45 18.
 

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I have 245 40 18 97 load on my car with no rubbing or other issues, and they are the closest in circumference to your standard 225 50 17 so the speedo will still be accurate.
And there is a wider range at a lower price than the standard 235 45 18.
+1 on this ... I got 4 Vredestein Ultrac Sessanta's in the size Jon quotes really cheap, they're a brilliant tyre
 
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