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Old 04-29-2007, 05:10 PM   #1
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wheel size question
Does anyone know if a 18 x 7.5 will fit a rx8 with a tire size of 245/40 /18?
Thanks in advance.
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Old 04-29-2007, 05:15 PM   #2
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7.5 is too narrow for 245/40. 8.5 would be better.
Also you didn't mention the offset.
Last edited by DarkBrew; 04-29-2007 at 05:19 PM.
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Old 04-29-2007, 05:23 PM   #3
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They will fit. I think it is recommended to have at least an 8.5" rim with the 245/40-18's.
Just the rim size is a little narrow now a 225/40-18 is more suited for a 7.5" rim.
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Old 04-29-2007, 05:27 PM   #4
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While the tire may be wide for the wheel.

I use it for autocross and HDPE.

If you are using it for street only you will be fine.
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Old 04-29-2007, 05:43 PM   #5
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but arent some ppl using 245/ 40 / 18 on stock rims and they are a 18 x 8..... or am i wrong? As far as offset, dont have the numbers right now.
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Old 04-29-2007, 08:19 PM   #6
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Quote:
Originally Posted by zoomerx8
but arent some ppl using 245/ 40 / 18 on stock rims and they are a 18 x 8..... or am i wrong? As far as offset, dont have the numbers right now.
Yes they are. The downside is slow steering response.
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Old 04-29-2007, 08:49 PM   #7
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Quote:
Originally Posted by zoomerx8
Does anyone know if a 18 x 7.5 will fit a rx8 with a tire size of 245/40 /18?
Thanks in advance.
depends on the tire..

i have 245 40 18s stuck on my 18 x 7.5.

works fine.. and it is you cant curb the wheel now..

beers
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Old 04-29-2007, 08:49 PM
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