275/40-18 on stock 18x8.5" wheels?

[Chris B.]

Is is safe to run 275/40-18 tires on the stock 18x8.5" wheels. I see most tire manufacturers recommend a 18x9" wheel or wider for that combination. However when I saw a set moounted on 18x9" wheels, they didn't look like the tires were on rims that were that narrow.

Would 1/2" in wheel width make a whole lot of difference? What is the widest tires that we should run on the stock 18x8.5" wheels if 275 width tires are too wide?

 

[stkjock]

Many guys use them, tho they are not approved as you noted.

 

[rojizostang]

i've been running them for quite a while....probably have about 13k plus on them. i posted pictures around here a while back. they barely bulge at all

 

[rojizostang]

here's some pics

take a look at these sumitomo htrzIII's 275.40.18

 

[Hessian]

What PSI should you normally run with this setup? How do they wear?

Any more pics?

 

[dragpac]

I'm running a 305/45/18 nitto DR on my stock 18 and it looks great and drives fine and my car is lowerd 2"

 

[Styre]

I'm running a 305/45/18 nitto DR on my stock 18 and it looks great and drives fine and my car is lowerd 2"

do you have some pics? what do you run in the front?