hi

i'm after some help...

i have an AP1 S2000

what is the best tire profile to use for a normal street setup so that speedo, abs etc aren't put out:

front - 18x7.5" +48, 215/?/18
rear - 18x8.5" +50, 245/?/18

i was thinking 40 front and 35 rear as i have seen alot of S2000's with this setup.

however, would 45 front and 40 rear work aswell?

thanks

 

ok...

i think i am understanding this a bit more but can someone please confirm for me...

given that the recommended non-oem tires for a stock setup are:

front - 205/55/16
rear - 245/45/16 (equivalent to the stock 225's according to the sticky thread)

using:

http://www.miata.net/garage/tirecalc.html

to minimise effects on speedo etc, i should be running:

front - 215/40/18 = speedo 0.4% too fast
rear - 245/35/18 = speedo 0.3% too slow

i hope these are ok for normal street use and that i don't dent the rims over pot / man holes...

 

you're correct 215/40's and 245/35's , the speedo read comes from the rear wheels only I'f I'm not mistaken.