Rims/tires question.

ONLY for ADVANCED technical discussion about the 240sx!
GBSilviaS15
Posts: 274
Joined: Mon Jul 12, 2004 6:10 pm

Post

My stock tires right now read:

P195/60R15 87T

I want 17'' rims that are close to these stock specs, but I also want pretty tires that'll clear the fenders and all that junk by the suspension.

What size rims and tires should I get?


User avatar
eastcoastchaos
Posts: 307
Joined: Mon Jan 20, 2003 2:59 pm
Car: 95 240sx

Post

Here is how to read/calculate tire size.

215/40ZR17

215 is the section with in mm. this tire is 215mm wide.40 is the aspect ratio. 40% of 215 or 86mm is the height f the tire.ZR is the speed rating17 is the size of the rim

With this info you can calculate the height of any tire/wheel combo. Some manufacturers deviate a little from these specs hence there is some (minimal) deviation from manufacturer to manuf.

Specification Sidewall Radius Diameter Circumference Revolutions Difference 205/55-16 4.4 in 12.4 in 24.9 in 78.2 in 811 / mile 0.0% 225/50-16 4.4 in 12.4 in 24.9 in 78.1 in 811 / mile -0.1% 245/45-16 4.3 in 12.3 in 24.7 in 77.5 in 817 / mile -0.8% 205/50-17 4.0 in 12.5 in 25.1 in 78.8 in 804 / mile 0.8% 225/45-17 4.0 in 12.5 in 25.0 in 78.5 in 808 / mile 0.4% 245/40-17 3.9 in 12.4 in 24.7 in 77.6 in 816 / mile -0.6% 205/45-18 3.6 in 12.6 in 25.3 in 79.4 in 798 / mile 1.6% 225/40-18 3.5 in 12.5 in 25.1 in 78.8 in 804 / mile 0.8% 245/35-18 3.4 in 12.4 in 24.8 in 77.8 in 815 / mile -0.5%

it's in the faq section under "tire sizes" for the easier to read graph but this should answer your questions


Return to “240SX Technical Forum”