tire sizes 18/ 255f 285b what size sidewall?

[ADRENLN]

sorry guys for the millionth tire question, but tire rack didnt really help me. im getting wheels that are 18in. 8.5in in front 10in in back. i was thinking 255 and 285 but dont want to mess with the abs system. i also dont want too much of a low profile tire.

ex. for 245/40 and 275/35 is all the mustang tires on the tire rack but i wanted a little wider what sizes do i need????????????

tire shop told me 255/35 and 285/30, but isnt that too low profile and not the right diameter for our cars? please help me out.

 

[GinoGT]

I have 265/35-18 for the front and 295/35-18 for the rear. The rear is a little bigger than stock, but I have a speedcal, so it's no problem for me.

 

[daver01]

u need to pick custom size option from tire rack page, it will only bring up a couple of popular sizes, if u just go by car type.

i got 275/40s and i wouldn't want to lose much more sidewall than that.

just my 2 pennies.

 

[ADRENLN]

yea i dont want to lose sidewall either, the fender gaps are big enough. you dont have any problems with abs with 275/40 isnt that bigger then the stock wheel diameter?

 

[hognutz]

you can make it fly. the stuff they recomend is so you don't have your speedo off. if you don't care about a recal you can get anything you want. I have 245/40r20 they are 27.7. my speedo reads a little low about 5mph. I have not done a recal becaue I am going to buy the sct sofware after I make my wife work more overtime and she is done with my potpie. ha ha

 

[01GTConv]

I have 255 40 18 all the way around. I fixed the speedometer with my programmer. The 255 40 18 (compared to stock 245 45 17) make your speedometer 1.4% slow and a 255 40 35 would make your speedometer 2.5% too fast (less chance of a speeding ticket).

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

 

[wms004]

sorry guys for the millionth tire question, but tire rack didnt really help me. im getting wheels that are 18in. 8.5in in front 10in in back. i was thinking 255 and 285 but dont want to mess with the abs system. i also dont want too much of a low profile tire.

ex. for 245/40 and 275/35 is all the mustang tires on the tire rack but i wanted a little wider what sizes do i need????????????

tire shop told me 255/35 and 285/30, but isnt that too low profile and not the right diameter for our cars? please help me out.

You should do 265/35/18 for the front.. 255/35 is short. 285/35 would be fine for the rear.. its only slightly taller than stock
285/30 is way too short and would look wierd. I think 295/35/18 looks too tall

245/45/17 (stock) 25.7"
265/35/18 (front) 25.3"
275/35/18 (option for rear) 25.7"
285/35/18 (option for rear) 25.9-26"

let us know any other questions

-wade

 

[wms004]

you can make it fly. the stuff they recomend is so you don't have your speedo off. if you don't care about a recal you can get anything you want. I have 245/40r20 they are 27.7. my speedo reads a little low about 5mph. I have not done a recal becaue I am going to buy the sct sofware after I make my wife work more overtime and she is done with my potpie. ha ha

Dang, with that size tire you should get some 4.30 gears to even out the slow down factor

 

[GinoGT]

295/35-18 out back looks