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[KSAF]

Hi all,

I have a 09 135 with sport package and was thinking of fitting the OEM rear wheels in the front with 225/40-18 or 235/40-18 tires, will the 18x8.5 rear wheels with 52 offset fitt in the front with no problems?

[Lester]

Someone earlier tried the rear wheels on the front and got some rubbing on the suspension side.

[Citizen Z]

You'll need some offset plates to push the wheels away from the suspension. An extra 10mm would do. You'll need to do a test and measure to be sure. Also, 225/40 is as tall as you're gonna want to go; its already taller than stock. 235/40 would be too much; 235/35s would be pretty close to the OEM configuration. I don't know who makes a 235/35 though; its a weird size.

[KSAF]

Thanks guys for the info. My car will arrive next week and will take some measures to know which spacers i need

[Bahraini135]

so, u dont want me to do the fittment test for u?

[KSAF]

Thanks buddy, unless you insist

[WhiteOne]

I have heard on this forum: Stock rear wheels and tires can be run on the front by adding 10mm spacers.

[sparoz]

hmm.. I should swap my wife's rears to my front then

[penny]

Originally Posted by sparoz

hmm.. I should swap my wife's rears to my front then

That can be interpreted in many ways.

[SlapSmak]

Originally Posted by Citizen Z

You'll need some offset plates to push the wheels away from the suspension. An extra 10mm would do. You'll need to do a test and measure to be sure. Also, 225/40 is as tall as you're gonna want to go; its already taller than stock. 235/40 would be too much; 235/35s would be pretty close to the OEM configuration. I don't know who makes a 235/35 though; its a weird size.

that is not accurate information, here are the specs of the tires in question:

Size
Service Description
Load RangeUTQGMax
LoadMax.
Inflation
Press.Tread
DepthTire
WeightRim
Width
RangeMeas.
Rim
WidthSect.
WidthTread
WidthOverall
Diam.Revs
Per
MileCountry
of Origin*215/40R18
Load Index 85 = 1135lbs (515kg) per tire
Speed Rating “Y” = 186mph (300kph) 85Y SL BMW RunFlat Treadwear: 140
Traction: A
Temperature: A140 A A 1135 lbs.
51 psi
10/32"
24 lbs.7-8.5"
7.5"
8.8"
7.8"
24.8"
840
Country of Origin "JP" = JAPANJP 245/35R18
Load Index 88 = 1235lbs (560kg) per tire
Speed Rating “Y” = 186mph (300kph) 88Y SL BMW RunFlat


Treadwear: 140
Traction: A
Temperature: A140 A A 1235 lbs.
51 psi

26 lbs.0-0"


NA
NA

Country of Origin "JP" = JAPANJP
235/40R18
Load Index 95 = 1521lbs (690kg) per tire
Speed Rating “W” = 168mph (270kph) 95W XL Not currently
available for
this tire.Pending

9/32"
27 lbs.8-9.5"
8.5"
9.5"
8.5"
25.4"
820
Country of Origin "JP" = JAPANJP

OEM Fronts are 24.8" in dia. 235/40/18s are 25.4" in diameter. that would be .6" difference in diameter which if cut in half for radius would be .3" difference in sidewall height. That would not be anywhere near too tall, as it is the difference in full tread to no tread on a normal tire. The rear rims fit perfectly with a 10mm front spacer. My reo1r's will be here in a week. I will post pics when they are installed.
Moral of the story, you should have bought 235/40/18 REO1-Rs when they were 108$, it was the deal of the century...