sharkbait20

9" wide wheel, 18" diameter.... what is the largest reasonably sized tire that could fit on this wheel? im thinking possibly between 275-305.
thanks!!

acdc163

Discount tire put 255/45 on mine and said it was the biggest tire he could put on, if I remember right

07 GT E UPP

Different tire manufactures have different tire/rim specs. Personally, I wouldn't go over a 275 on a 9" wheel. And, 285-305 is absolutely out of the question for an 8.5'- 9.0" wheel .While slightly against the rules, many guys here are running the 275 with no problems at all. I currently have 255/45/18 on 9" in front and 285/40/18 on 10.5 " in rear.

5SPD07GT

255/45/18 front 295/45/18 rear

07 GT E UPP

He'll want to know your rim size....

Norm Peterson

Haven't I seen this question already?

Anyway, it depends on what you're really after.

Primarily for appearance, 275/40.

Hardcore cornering response, 255/45 or maybe only 245/45.

There isn't much else.


Norm

fullboogie

I wouldn't go more than a 255 on a 9" rim. You don't want the tread width being more than the rim width or you'll get uneven wear.

Argonaut

I run 275/40 Nitto NT01 on 9" rim, with lots of high speed track days, without any weird wear patterns. Works fine.

Norm Peterson

NT01's may have sidewall construction that puts up with that a little better than pure street tires, though.


Norm

danbevsv6rumbler

dont wanna jack the thread but argo do you run 275s all around for your track days? i've been looking to upgrade my rims/tires and i'm not sure if i want to run 275s all around or stagger with 245s up in the front (its only a v6... the 275s might slow me down haha).

back on topic though... i think the safest way to find out if a tire can work is to visit the tire manufacturer's website and get their specs. According to falken and nitto 275/40s can fit on a 9 inch rim (min. width suggested). BTW, this overall diameter of the tire is SMALLER than the stock 235/55 R17s and can throw off the speedo - I'm not sure about widths for tires with taller sidewalls