Below are the factory rim and tire specifications for Nissan 350z/370z models which are commonly installed on the 5thgen Nissan Maxima.

350z Touring V2

Front Wheels: 18×8 +30MM
Front Tires: 225/45/18
Weight: 24.4lbs

Rear Wheels: 18×8.5 +33MM
Rear Wheels: 245/45/18
Weight: 25.8lbs

2008 350Z

370z Base:

Front Wheels: 18×8 +43MM
Front Tires: 225/50/18
Weight:

Rear Wheels: 18×9 +15MM
Rear Wheels: 245/45/18
Weight:

 

370z Sport:

Front Wheels: 19×9 +47MM
Front Tires: 245/40/19
Weight:

Rear Wheels: 19×10 +30MM
Rear Wheels: 275/35/19
Weight:

370z NISMO

Front Wheels: 19×9.5 +40MM
Front Tires: 245/40/19
Weight:

Rear Wheels: 19×10.5 +23MM
Rear Wheels: 285/35/19
Weight: