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Quick question about offset

Discussion in 'Model S' started by Lukez, Aug 14, 2016.

  1. Lukez

    Lukez Member

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    I'm looking at a winter tire package. Tires are 245/45r19 just like the oems but they are on aftermarket wheels. The seller says they were off a bmw 7 series so I suspect they have 25 offset. Will these work? Worst case would I just need to get a spacer?
     
  2. PaulusdB

    PaulusdB Mayor Gnomus Vintage Limb

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    Just fit them to know for sure, ET25 is a borderline fit on the front axle. And no, spacers would LOWER the offset.
    Lastly, be sure that the wheels have a flush fit to the brake disc mounting surface. There's a nasty torx bolt protruding ever so slightly from that surface.
     
  3. artsci

    artsci Sponsor

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    Are you buying the wheels and tires or just the tires? If the latter, offset is not affected by tires.

    If you're buying the wheels and tires offset of +25 should not be an issue. If it's negative offset you will have a problem.

    As PaulusdB recommends it's always a good idea to test fit.
     
  4. Cowby

    Cowby Member

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    I've got a set of 5mm spacers u can have as I don't need them....just pay shipping.
     
  5. Lukez

    Lukez Member

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    Getting wheels and tires but I just noticed the bore size is different as well. So I would need a centering ring as well. Might just have to pass on them though the price is right, dang.
     
  6. PaulusdB

    PaulusdB Mayor Gnomus Vintage Limb

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    You're going to have to (re)balance the wheels anyhow, so ask that shop to supply you with the correct size centering rings.
     
  7. CHG-ON

    CHG-ON Still in love after all these miles

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  8. FlatSix911

    FlatSix911 918 Hybrid

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    No worries, you should be fine with the 25mm offset on 245/45R19 tires.
    I run OEM forged BMW wheels with a 15mm offset and have no issues.
    The wheels will be pushed to the edge of the fenders for a more aggressive fit. :cool:

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