Tire Tech
 

I can't believe I don't know this already, but how do you read tire sizes? I know some of them, but some others don't make sense and I'm trying to size a set of drag radials for rims I just got.

My original tires were P185/65R14

My current tires are P205/50ZR15

I just picked up 2 rims that measure 15.5" diameter at the lip (although I'm told they're 14" rims?) by 7" wide and I'm trying to figure out HOW to pick a good drag radial to fit.

Any ideas?

Re:Tire Tech
 

Re:Tire Tech
 

ha, im a tire tech there. the write up pretty much explains it. otherwise just bring a rim to a discount tire store and they'll help you find the right size

Re:Tire Tech
 

what he said!

Re:Tire Tech
 

I won a $150 gift certificate to Jegs, so I kind of wanted to have my ---- straight in my head before I went in. I hate going there not knowing what I want because it's always full of muscle car guys. :-X

Re:Tire Tech
 

Here's anpther good link from discount tire.

http://www.discounttire.com/dtc/broc...skSidewall.jsp

Re:Tire Tech
 

So I'm going with Nitto NT555R 205/55-R14 tires. Picking them up on Thursday. Can't wait for spring!!! :D

Thanks for the comments!

Re:Tire Tech
 

dude!! WTF R14!? thought you had 15" rims?

205-40R16

205 = width of tread in MM
40 = sidewall in % of the tread width
16 = rim size in inches.

Honda civic (88-91) OEM tire size = 185-60R14

for a 15" rim you want 195-50R15 or 205-50R15
for 16" 205-40R16

those sizes will keep the rolling diameter as close as possible to the oem size (to keep the speedo as accurate as possible)

Re:Tire Tech
 

The car came with 14's. I'm running 15's now and these are going on a pair of 14s I picked up a few weeks ago. Designated track only front tires. Just wanted to make sure they would fit.

Re:Tire Tech
 

incorrect

205 = greatest width of the tire including sidewall