Wheel NISSAN 350Z  17" x 7.5".   Front wheel  probably  OEM for 2003 to 2005 but can be used on 2006 to 2009.  The 17" use higher profile tires than the 18"  and are a better choice for winter tires or roads with potholes.    The front and rear rims have the same bolt patterns  but are wider in back to acomodate a larger width tire.  Also,  the traction control requires larger diameter tires on the rears.

Nissan 350Z stock wheels come in two rim sizes:

Let us dissect this rim size. What does it mean, and what parts should you pay attention to?

7.5J – Rim Width – The first number (7.5 & 8 in this case) shows the rim width in inches.

17 – Rim Diameter – The most crucial part of the rim – the second number after ‘x’ shows the rim diameter.

ET30 – Offset – The stock wheel offset shows how far (inward or outward) the hub mount is from the wheel’s center.