Tire Question

[redmustanggt]

What is the biggest tire i can fit on a 17x7.5 in rim. And what if i was to get a 18x9 inch rim what would be the biggest tire i could put on that. I would like to have 245 on front and 275 on back.

 

[deftsound]

that would probably work

 

[redmustanggt]

Also one more question. I have 3 chrome cobra r rims 17x9 that i may sell.( dont have four because one is messed up) Anyone know what i could get for them without tires. There in good condition. These were the rims i was thinking about putting on. http://cgi.ebay.com/ebaymotors/Whee...ewItemQQcategoryZ43955QQitemZ8029491067QQrdZ1

 

[HoustonGT]

Actually i'm kind of interested in how wide i could go on a 18x9 wheel too. I have 275's right now but wish to upgrade to 285's. Is it do-able?

 

[cobrahissss]

Usually it is the section width of a tire that determines the rim width that can be used. Assuming the aspect ratio you want is a sport series the 35 to 50 A/R range the 245/45R17 is widest tire that is approved for a 7.5 inch rim. The 275/35R18 is the widest tire that is approved for a 18X9.0 rim.

 

[cobrahissss]

Usually for 18" tires the 285 tires are 285/30R18 which by Tire & Rim Association require at least a 9.5. I do not believe you will run into a problem if you want to use the 9.0 rim. Heck I am running a 275 tire on a 8 rim that the tire should be on a 9.

 

[2wheeliepeelie]

This size comparator can be useful...
http://www.1010tires.com/TireSizeCalculator.asp?action=submit