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Old 01-04-2005, 12:10 AM   #1
imprezkid
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Default Whats the widest tire for a 7.5" rim

I have 225/40/18 all the way around with prodrive lowering springs, everything works great. I am looking to go up to a 19" rim in the back and would like to know how wide of tire i can get on the back.

I was thinking 235/35/19 but 245 would be great if they fit and would i need any camber kits or things like that
THANKS
imprezkid

ps. dont worry about the clear tail lights there gone when i get a chance
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Old 01-04-2005, 12:20 AM   #2
WagonMonster
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Why do you want a 19" rim?
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Old 01-04-2005, 12:22 AM   #3
soundwave
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to match his altezzas
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Old 01-04-2005, 03:33 PM   #4
lawn boy
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uhhh you can't do 1 size in front and another in back, it will SERIOUSLY **** up your differentials.
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Old 01-04-2005, 03:38 PM   #5
Jduke
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Right, not a good idea... but what about a wider rim in the back? Say 18x7.5 upfront and 18x8 in the rear....

John D.
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Old 01-04-2005, 04:40 PM   #6
subieworx
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Quote:
Originally Posted by lawn boy
uhhh you can't do 1 size in front and another in back, it will SERIOUSLY **** up your differentials.
No it won't, not if the tire diameters between the front and back are not more than 1/4" off. If they are within that it will work fine, but what is the point?
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Old 01-04-2005, 05:12 PM   #7
jefersun
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Quote:
Originally Posted by Jduke420
Right, not a good idea... but what about a wider rim in the back? Say 18x7.5 upfront and 18x8 in the rear....

John D.
What would be the point of that?

That's like a civic having rear slicks and front skinnies...

And no, you can't fit a 245 on a 7.5" rim. You can BARELY, if safely at all, fit a 235 on a 7.5" rim. Just buy some 18 X 8 superlegerras and put some 245 Azenis on them, then you'll be pimpin'.
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Old 01-04-2005, 07:38 PM   #8
jaxscuby
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Quote:
Originally Posted by jefersun
And no, you can't fit a 245 on a 7.5" rim. You can BARELY, if safely at all, fit a 235 on a 7.5" rim. Just buy some 18 X 8 superlegerras and put some 245 Azenis on them, then you'll be pimpin'.
wrong...
245/40/17 will fit had them on my SSR's.
235/40/17 will also fit had them on the
same rims.

if you adjust your camber you can, but i will
eat up your tires.

the above sizes were victor racers and v700
that I use for autox.
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Old 01-05-2005, 08:38 AM   #9
subieworx
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Quote:
Originally Posted by jaxscuby
wrong...
245/40/17 will fit had them on my SSR's.
235/40/17 will also fit had them on the
same rims.

if you adjust your camber you can, but i will
eat up your tires.

the above sizes were victor racers and v700
that I use for autox.
It isn't really a matter of what you can get to fit on the rim, it is a matter of safety as perscribed by the manufacturer of the tire. All tires are meant to be run on a certain rim width. There is no 245 tire out there that I have found that says it can be run on a 7.5" rim. On the other hand every 235 I have ever seen says it is perfectly acceptable to run them on 7.5" rims.

It is also not necessary to adjust camber to insane levels to get 245's to fit. A proper offset wheel and at most fender rolling is all that is necessary. Adjusting the camber just to fit a wider tire defeats the purpose of running a the wider tire.
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