I want to run 255/35/20 on my car . Can I run this size without spacers ?

 

depends on the offset. But can be done...

 

Wouldn't 255/30 be a much more appropriate size?

R

 

Hey I'm running that set up!! My offset is +38 I hope that helps

 

Since running 20's is not about handling I don't see why you'd want 255s vs 245s. A 255/35/20 is over 6% bigger (1.7") in diameter/circumference over stock 17s so your speedo will be that much off (low reading).

 

I had that setup with a +41. But changed it to a 245/35/20.. Do the 245/35 it's better because you might encounter a slight rubbing when you have the wheel fully turned with a 255...

 

i have 245's and they still rub,

 

and on my 20's i still need to use 15mm spacer to make it fit my
supra TT brakes

it rubs, left and right:eek:

 

I want the 255/35/20 for the slight wider width. The wheels will be protected a little more. The roads in Pennsylvania SUCK.

 

No offense, but if the roads suck, then you probably shouldn't be on dubs, and 5% extra sidewall won't offer that much protection. Like Bitkahuna said, it will cause your speedo to be off... when your speedo says 60, you'll really be doing 64.

Check out the tire size calculator over at miata.net to get a better idea of the sizes available to you.
Tire Calculator