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Discuss Wheel Specs at the Focus ST Tires & Rims within the Ford ST Nation; A few threads had questions ...
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    Wheel Specs

    A few threads had questions about wheel specs. Here they are...

    18 x 8.0
    55 mm offset
    backspacing = 169.5 mm / 6.673 in
    63 mm center bore
    weight = 25 lbs (hey, it's gotta pass durability!)
    tire pressure = 36psi

    same size as optional 18" titanium wheels

    16" wheels will fit over the front brakes.
    Spare is just a base SE 16" steel wheel with the Continental all season tire mounted

    I wouldn't recommend lower offset wheels as the KPO and scrub start to get big and not good with low profile tires and a bunch of torque and braking capacity.

    Definitely get snow tires if you live where it snows. I'm not a fan of all seasons esp for performance cars. They're a compromise in the winter and a compromise in the summer. Owner's call though...

    Ride v. good for a 40 series tire.
    Last edited by timo; 05-12-2012 at 01:19 PM. Reason: added backspacing
    Chad, blurbyu and Rev.Hammer like this.

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    Thanks for the info. Given the specs for the stock wheel, would the O.Z. Ultraleggera fit on the car? Here is the info for it from tire rack:

    Size: 18x8
    Offset: 38mm
    Backspacing: 5.98"
    Bolt Pattern: 5-108
    Rec. Tire Size: 235/40-18
    Weight: 18.4lbs.

    Thanks in advance.

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    If the brakes are the same or at least the same size as the titanium handling package, you can fit 15" steelies over them without any problem, I have the package and used 15" rims for my winter tires.

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    UIf one has intention of taking this car drag racing I would use the smaller diameters wheels and tires to effectively increase the gearing.

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    ST Nation Officer Enlist Unreal's Avatar
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    I've read in more than one place that the wheels on the ST will be 18x8.5, not 18x8.0...like this post by Chad...

    2012 Ford Focus ST Trims & Specs - Official Ford Document

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    Quote Originally Posted by stftw View Post
    Thanks for the info. Given the specs for the stock wheel, would the O.Z. Ultraleggera fit on the car? Here is the info for it from tire rack:

    Size: 18x8
    Offset: 38mm
    Backspacing: 5.98"
    Bolt Pattern: 5-108
    Rec. Tire Size: 235/40-18
    Weight: 18.4lbs.

    Thanks in advance.
    With the above, you're moving the wheel outboard 17mm due to the offset difference.

    Might rub
    Will change steering geometry
    Will load bearing differently from design/test

    Because of the above I couldn't recommend but that being said I'm sure they will be installed on some cars.

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    Quote Originally Posted by safetyguy14 View Post
    If the brakes are the same or at least the same size as the titanium handling package, you can fit 15" steelies over them without any problem, I have the package and used 15" rims for my winter tires.
    Rear brakes are the same as Titianium
    Front brakes are 320mm diameter vs. 300 on Titanium/base.

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    Quote Originally Posted by Unreal View Post
    I've read in more than one place that the wheels on the ST will be 18x8.5, not 18x8.0...like this post by Chad...

    2012 Ford Focus ST Trims & Specs - Official Ford Document
    Hmmm...that's a typo. I can't post the eng. drawing but I promise they're 18x8

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    Quote Originally Posted by timo View Post
    With the above, you're moving the wheel outboard 17mm due to the offset difference.

    Might rub
    Will change steering geometry
    Will load bearing differently from design/test

    Because of the above I couldn't recommend but that being said I'm sure they will be installed on some cars.

    That's not what I wanted to hear but thanks for your input. Hopefully there will be a wheel that works with the st that weighs less.

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    Thanks for the specs... time to start checking in with Compomotive and Team Dynamics to see what's available in this size. Wonder if a 17 will look too small on the car? Hmmmm...
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