Hey! I see you! Please take two seconds to sign up! We'd love to have you as a member of our Kia Stinger club. You have nothing to lose and so much to gain... :)

Wheel/size/offset and tire/size/profile...can be confusing.

Discussion in 'Suspension, Brakes, Wheels, Tires Discussion' started by Shrikecorp, May 2, 2019.

  1. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    I've been sort of compiling and validating some combinations. Criteria: avoiding poke, trying to find ways to improve on the stock look without compromising performance too much, etc. Seems like an okay start, might be cool if we could add to it (original in Excel has formulas and all that bit.) Thoughts?

    upload_2019-5-2_12-30-34.png

    Corrected/updated:
    upload_2019-5-3_11-6-50.png

    Link to editable Google Sheet. Add your own, etc. Play nice. Wheel Tire Options
    • Added columns for AWD/RWD and lowered or not.

    Seriously nifty comprehensive calculator linked by @YOWStinger : Rim & Tire Size Calculator. Custom Offsets
     
    Last edited: May 3, 2019
    • Informative Informative x 7
    • Like Like x 1
  2. Manaz

    Manaz Australia 1000 Posts Club!

    For tyre sizes and trying to keep to stock-ish rolling diameters (to avoid Speedo inaccuracy, or to avoid issues with AWD and mismatched sizes), there are a number of tyre size calculators online that can help. The miata.net site has one that has been my go-to for years - it's basic but it works (There are others out there that graphically show the differences, etc).

    Tire size calculator
     
  3. Logic717

    Logic717 United States Member

    80
    18
    8
    Location:
    Atlanta,GA
    Great post, thanks for sharing this!
    nks f
     
    • Like Like x 1
  4. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Indeed, that's what the Excel formulas are based on. I do find significant discrepancies between calculated values and actual diameters at times. Michelin appears to be more consistent than others (I'm looking at you, Pirelli).
     
  5. YOWStinger

    YOWStinger United States Active Member

    437
    120
    43
    Location:
    Ottawa, ON
    If I may suggest, staggered 20 option B is

    Front 20x8.5+30 245/35r20
    Rear 20x10+40 285/30r20

    This is the suggested TSW wheel size, I'm still working on validating +40 in the front which may not work depending on the shape of the spoke.+40 was used on the Federation Stinger on the front with TSW Sprints.
     
  6. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Excellent input. It'd be great to see living documents for quantitative information (perhaps fuel mixing, etc.., as well), updated by site members. Searching is tricky with terms repeated thousands of times. I'll integrate this data when I'm back to a PC.
     
  7. Kamauxx

    Kamauxx United States 2500 Posts Club!

    4,536
    1,662
    118
    20a wouldn't work. The rear tire would be way too small compared to the front. Since that looks like the specs from my car you probably meant to put 285/30 vice 285/25.

    A 285/25/20 mixed with 245/35/20 would look like this:

    Screenshot_20190502-204802.png
     
    • Like Like x 1
    • Agree Agree x 1
  8. Andimal

    Andimal United States Active Member

    148
    42
    28
    Location:
    Crossville, TN
    I have a square set up - 19x9.5+25 and 255/35/19 tires. AWD on Eibach springs. Tight fit in the front, but perfect, not issues.
     
  9. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Thanks! I see my formula for calc diameter for 20A was borked, now corrected in Excel file. And it now aligns with the results you got from the TireSize calculator. :D The mix I was going for was 245/30 20 and 285/25 20, trying to stay very close to stock diameter, which gets us this...just .2"/0.8% difference, pretty close to the stock 26 and 26.1:

    upload_2019-5-3_9-45-49.png

    What's yours exactly, offsets and all?
     
  10. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Added in :)
     
  11. MisterMac

    MisterMac United States Stinger Enthusiast

    891
    360
    68
    Location:
    El Paso, TX
    FYI, This set-up results in 1/2 inch of poke front and an inch in the rear..
     
    Last edited: May 3, 2019
  12. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Added in :)
     
  13. Tobstertx3

    Tobstertx3 United States Stinger Enthusiast Texas Stinger Swarm

    503
    175
    43
    Location:
    Houston, TX
    Another option for you which is my current 20” staggered setup

    Front 20x9+35mm 235x35
    Rear 20x10+40mm 275x30 5919C642-FA6E-4D16-B577-B4332886A33F.jpeg
     
    Last edited: May 3, 2019
  14. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Any poke?
     
  15. YOWStinger

    YOWStinger United States Active Member

    437
    120
    43
    Location:
    Ottawa, ON
    What offsets?
     
  16. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Here we go. Posting this here, and I'll add the original post. Link to Google Sheet, open to edit for all who have the link. Add yours if you like, etc. Play nice. Wheel Tire Options
     
    • Winner Winner x 3
  17. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    Indeed, I should note that accuracy for @Kamauxx and @Tobstertx3 configs are pending offset data.
     
  18. brancky3

    brancky3 United States 1000 Posts Club!

    1,107
    266
    88
    Location:
    USA
    Added mine.
    19x8.5 +32 // 255/35/19
    19x10 +47 // 295/30/19

    They are 0.05" apart in circumference
     
    • Like Like x 1
  19. YOWStinger

    YOWStinger United States Active Member

    437
    120
    43
    Location:
    Ottawa, ON
    Also, I might suggest using this as the calculator going forward, which allows you to enter all of the specs including offset, tire size, and calculate fender and wheel clearance, etc. I should measure up what the stock fender clearance is.

    E.g. Rim & Tire Size Calculator. Custom Offsets
     
    • Winner Winner x 1
  20. Shrikecorp

    Shrikecorp United States Stinger Enthusiast Sustaining Member

    521
    194
    43
    Location:
    Seattle, WA, USA
    That's excellent, really nice find :thumbup:...if we get the fender and suspension clearances, I can probably extrapolate the formulas from the results and incorporate into the sheet as well. That'd be great.
     
    • Like Like x 1
Draft saved Draft deleted

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.