One of the most common questions we get asked it what tyre sizes should people run on their Nissan 350z and 370Z's, so we thought we would make a guide. 

Lets start with 350z's, for the standard OEM Rays wheels the recommended tyre sizes are as follows:

Fronts - 225/45/R18 - 18x8J Wheel
Rears - 245/45/R18 - 18x8.5J Wheel

You can also drop the profiles on the 18" tyres if you wanted to run a tyre with a thinner sidewall. For this we recommend dropping the profiles on the front and rear from 45 to 40.

If you are looking to upgrade to 19" wheels to fill your arches you are better dropping the profiles of the tyres to get a nice fit without comprimising the quality of the ride, and wont encounter any arch clearence issues. For the perfect fit we have always found 9.5J front wheels and 10.5J rears fit nicely with the correct offsets. For these the we recommend the following tyre sizes

Fronts - 245/35/R19 - 19x9.5J Wheel
Rears - 275/35/R19 - 19x10.5J Wheel

Onto 370z's and there is a slight different between the 370z GT and Nismo models. On the GT models the OE wheel tyre sizes are:

Front - 245/40/R19 - 19x9J Wheel
Rears - 275/35/R19 - 19x10J Wheel

370z Nismo's run slightly wider wheels and run a wider tyre on the rear

Front - 245/40/R19 - 19x9.5J Wheel
Rears - 285/35/R19 - 19x10.5J Wheel

If you are looking at putting 20" wheels on your 370z as with the 350z we would recommend dropping the tyre profile size so you won't encounter any clearence issues on the archs. For 20's we recommend running a 9 or 9.5J on the front and a 10.5J or 11.5J on the rear, again with the correct offsets. 

Fronts - 245/35/R20 - 20x9J Wheel
Rears - 285/30/R20 - 20x10.5J Wheel

or 

Fronts 245/35/R20 - 20x9.5J Wheel
Rears 305/30/R20 - 20x11.5J Wheel

All the recommendations above are to stay within the OE paramiters. 

Please note we are now official Nankang Tyre UK distributors, so we have all your tyre needs covered

https://www.tarmacsportz.co.uk/brands/nankang/