275s on 8.5" rim...

[-The Stig-]

The wheels I'm looking at buying are 17x8.5, even in 18's they're 8.5.

And I would like to run a 275/40's on all four corners.


Question is... will the tire safely fit on the rim? According to Tirerack.com they say the 275/40 requires a 9-11" rim. Will that -.5" make a huge difference? Or am I stuck with 265s or a 255?



I've seen online people mention that you can't fit/shouldn't fit larger than 255 but other folks have said 275s fit fine on a 8.5" wide rim.

My Google machine hasn't been very accurate in getting me the answers I need.

Appreciate any/all input!

[Rybar]

I ran 275's on 8.5" rims on all four corners of my old 4th Gen Trans Am. Never had any problems, only thing was the tires ballooned out past the lip of the rim a little.

I guess not ideal but it did work. Can save you some curb rash lol.

[Tony_SS]

Nitto tires run a little on the small side, so if you run that size, I would go with them and you should fine.

[silver69camaro]

Personally, I wouldn't. Getting the biggest tire size is great if you are tracking the car and need the utmost largest tire contact patch, but a small rim/wide sidewall will make the steering feel "splashy", because the rim is floating on on the sidewall. I'd rather drive a car with a 245 tire on a 8.5" than a 275. Many European cars run wide rims with narrower tires for this exact reason.

IMO, a 275 should be run on a 10" rim.

[mc84_zz4]

Not necessarily any more answers here, but a good tool for visualizing tire/wheels:
http://www.rimsntires.com/rt_specs.jsp

HTH

[Vegas69]

I always go by the tire manufacturer recommendation.