Heeeeelp!

M

MUSOM

Member

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2006 MazdaSpeed 6 GT

• May 23, 2007

• #1

I just purchased by new exel ennios 18x8 (5 x 114.3) 45 offset. They weigh 18-20 lbs (per wheelmax) and set me back exactly $550. I'm looking to find some new tires now. I want bf goodrich g-force KDW2. The problem is they don't make those tires in 215 45R18. My options are 225 40R18 (28 lbs; $167) and 225 45R18 (25 lbs;$176). I would like to go with the 225 45R18 because of the 12 lbs of unsprung weight. Tirerack says the stock MS6 tires are 25 lbs.

My question: Can I go with 225 45R18 on an 8 inch rim with 45 offset? Will I have to roll the fenders? The tire calc says the 225 40R18 is 2.1% too fast and the 225 45R18 is 1.4% too slow. Someone help a brotha out here.

 

J

jcgemt2003

Member

:

06 speed6

• May 23, 2007

• #2

Hmmm....I had 225/40/18s on here with a 50 offset and it was pretty close my man.

What do ya think of these?
https://www.ebay.com (commissions earned)

 

Last edited: May 23, 2007

M

MUSOM

Member

:

2006 MazdaSpeed 6 GT

• May 23, 2007

• #3

It shouldn't make much difference between 225 40R18 vs 225 45R18, right? I am fine on height I think (stock suspension and springs). I just am not real sure about that extra 5 mm rubbing. hmm.....

 

J

jcgemt2003

Member

:

06 speed6

• May 23, 2007

• #4

MUSOM said:

It shouldn't make much difference between 225 40R18 vs 225 45R18, right? I am fine on height I think (stock suspension and springs). I just am not real sure about that extra 5 mm rubbing. hmm.....

Click to expand...

I think your wheel height will be fine.

 

M

MUSOM

Member

:

2006 MazdaSpeed 6 GT

• May 23, 2007

• #5

I like those rims, but personally I like to show a little more caliper. The short the skirt the better, IMHO!!!! Nice though!

 

J

jcgemt2003

Member

:

06 speed6

• May 23, 2007

• #6

I like these a little better though...
https://www.ebay.com (commissions earned)

 

M

MUSOM

Member

:

2006 MazdaSpeed 6 GT

• May 23, 2007

• #7

ahhh yes. much better. I think the thin spokes are sharp!

 

A

AWDRACER6

Member

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Mazdaspeed 6

• May 24, 2007

• #8

jcgemt2003 said:

I like these a little better though...
https://www.ebay.com (commissions earned)

Click to expand...

Very nice!

 

E

Elicious

Member

:

'06 Mazdaspeed6

• May 24, 2007

• #9

MUSOM said:

It shouldn't make much difference between 225 40R18 vs 225 45R18, right? I am fine on height I think (stock suspension and springs). I just am not real sure about that extra 5 mm rubbing. hmm.....

Click to expand...

It's not 5mm taller, it's 22mm taller!

And as far as rubbing, yeah, you'll most likely rub. I have 18x7.5 ET 45 with 225/45/18s and I rub going fast over large bumps or dips. I need to roll my fenders.

 

W

Wiggum

Member

• May 24, 2007

• #10

Run a 235/40/18 or 245/40/18 on a 18x8...

Many users including myself run the 235 with no issues..

 

M

MazdaJeff

Member

:

Mazdaspeed 6

• May 25, 2007

• #11

Wiggum said:

Run a 235/40/18 or 245/40/18 on a 18x8...

Many users including myself run the 235 with no issues..

Click to expand...

What offset are you running?

 

C

chuyler1

goes to eleven

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2013 CX-9

• May 26, 2007

• #12

If you lower the car you cannot do 18x8 +45. I've got 18x8 +48 and it rubs like crazy with 225/40R18 tires. I rolled the fenders but I fear it will still rub.

 

M

MazdaJeff

Member

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Mazdaspeed 6

• May 27, 2007

• #13

chuyler1 said:

If you lower the car you cannot do 18x8 +45. I've got 18x8 +48 and it rubs like crazy with 225/40R18 tires. I rolled the fenders but I fear it will still rub.

Click to expand...

Are you serious? I was planning on doing 235/40 on a 18x8 +48. I knew I would have to roll, but "not like crazy".

I'm lowered on AutoEXE springs. You?

Now you have me worried.

 

C

chuyler1

goes to eleven

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2013 CX-9

• May 28, 2007

• #14

I've got the Megans. You might be alright but if the suspension compresses and the tire gets close to the fender, +48 with any tire larger than 225 is going to be a struggle.