PiGFoetus Posted November 26, 2013 Share Posted November 26, 2013 Hi all, I am currently sorting out my wheels and have a few of questions / need confirmation of my understanding. I have a 2005 350z Roadster which I bought back in July with stock 18" alloys. I have also just purchased a set of 350Z 18" forged Rays. I intend to get some winter tyres put on the standard alloys, and some summer tyres on the Rays (after a refurb) to herald in the end of spring next year. I want standard tyre sizes: 245/45 R18 on the rear and 225/45 R18 on the front. When I came to check the current tyres, however, the previous owner has fitted 225/45 R18 all round (front and rear). As I understand it (having just searched the forum for a while), the rear wheels should be 8.5J and the front should be 8j. Is there a way to check (without physically measuring the width) whether the wheels are currently on the right way around (or indeed are the right size ... I could be running with four front wheels for all I know )? Secondly, I believe that come the spring the Rays should replace the current standard wheels without any further modification in the way of spacers. Take one set off, put the other on. Am I correct in my assumption? Apologies for the daft questions, Cheers Pete Quote Link to comment Share on other sites More sharing options...
Neilp Posted November 26, 2013 Share Posted November 26, 2013 Its printed on the inner hub face mate. This will cause tcs issues if fitted with those sizes. Quote Link to comment Share on other sites More sharing options...
PiGFoetus Posted November 26, 2013 Author Share Posted November 26, 2013 Its printed on the inner hub face mate. This will cause tcs issues if fitted with those sizes. I take it you mean tcs issues with what's currently on (225s all round) rather than what I intend to put on? cheers, I'll take a look in the light tomorrow. Quote Link to comment Share on other sites More sharing options...
sloutrou Posted November 26, 2013 Share Posted November 26, 2013 I almost bought a set of rays this year, until I got to see them and found that all four were 8j, the seller insisted that it made no difference but ZMANALEX said otherwise... Quote Link to comment Share on other sites More sharing options...
Ricey Posted November 26, 2013 Share Posted November 26, 2013 No spacers needed for Rays or stock......well no spacers needed for anything other than to sort of the horrendous aesthetics of the stance without spacers! Quote Link to comment Share on other sites More sharing options...
Ricey Posted November 26, 2013 Share Posted November 26, 2013 I almost bought a set of rays this year, until I got to see them and found that all four were 8j, the seller insisted that it made no difference but ZMANALEX said otherwise... Hence why the cars have that handy little bolt on the front disc Quote Link to comment Share on other sites More sharing options...
14N Posted November 26, 2013 Share Posted November 26, 2013 If you're referring to the standard 18 inch GT wheels, they (the wheels) are the same width front and back. It's just the tyre sizes that are different 225/245 respectively. The Rays wheels are different widths 8j and 8.5j respectively. I only discovered this recently myself. I thought both sets of wheels where different widths front and rear but oh no, it's just the Rays. 1 Quote Link to comment Share on other sites More sharing options...
rothers2901 Posted November 27, 2013 Share Posted November 27, 2013 I'm also sure that you cant fit front rays on the rear as the central locating hub hole is smaller than on the rear. Quote Link to comment Share on other sites More sharing options...
PiGFoetus Posted November 27, 2013 Author Share Posted November 27, 2013 Thanks guys, Just "found" a 350 wiki that confirms that: My stock wheels are 18-inch Touring wheels V1 (at least so called in the US) Front and Rear Size: 18x8.0 Offset: +30mm The Rays are 18-inch Track wheels V1 Front Size: 18x8.0 Offset: +30mm Rear Size: 18x8.5 Offset: +33mm Funny how we measure the rim size and width in inches, but the offset in mm. Quote Link to comment Share on other sites More sharing options...
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