20x10.5 and 20x9 Tire Sizes

Discussion in 'Wheels & Tires' started by Matiti, Feb 27, 2020.

  1. Matiti

    Matiti Member

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    I am in need of tires pretty soon and I wanted to go with wider tires than my current 245/35/20. The wheels that I have are STR 607 20x9 +30 and 20x10.5 +35. The tires I have right now are very stretched out. I am not even sure about what tire size I should be running, especially regarding fitment after a 1" drop. I think 305s in the rear are a bit big and unnecessary for an ecoboost. Don't know if I should run wheel spacers too.
     
  2. shogun32

    shogun32 Well-Known Member

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    maybe you could elaborate on the precise question you need answered that wasn't addressed in triplicate by the 400 other threads in this section?
    Are you not familiar with the 'spec' tab on TireRack.com's website?
     
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  3. NightmareMoon

    NightmareMoon Well-Known Member

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    Tires square to the wheel would be 9”=255, 10.5”=295. Go narrower for a little stretch, wider for a little bulge.
     
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  4. OP
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    Matiti

    Matiti Member

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    My bad, the main question that I didn’t make clear is, what are good tire sizes with that wheel spec that wouldn’t rub?
     
  5. FatPat

    FatPat Active Member

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    I have 20 x 9 and 20 x 10.5 wheels. I'm running 265/35 in the front and 305/30 in the rear. I think it's a good fit with no stretch. It's a relatively decent ride with the lowered suspension as well.
     
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  6. Velgen

    Velgen Well-Known Member
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    You will need that stretch in the rear since its a 35 offset. If it was a 45 you sill be able to run a nice tire on there and not rub,
     
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  7. Kong76

    Kong76 Well-Known Member

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    I have the 305/35 on my rear Velgens 10.5 with 45 offset and they are perfect. No stretch and no bulge. Fronts I run 275/35. I have the BMR minimal drop kit.
     
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