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Widest tire size for 9" wide wheel R-20"

Discussion in 'Wheels/Tires/Brakes' started by demas, Nov 23, 2015.

  1. demas

    demas Member Established Member

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    Hi,
    Again my traction is not enough for me and i gotta improve it.
    What's the widest tire i can put on my 20" / 9" wheels?

    Thanks
     
  2. evil281

    evil281 Member Established Member

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    I have a 275/35/20 on my fronts. 20x9. I would not go any larger than that.

    I would say the tire compound is more important than an extra inch width.
     
  3. demas

    demas Member Established Member

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    Hi man
    What do you mean by tire compound?
     
  4. evil281

    evil281 Member Established Member

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    Compound meaning the material that makes up the tire. Hard street tires suck and going from a 255/35 to the max size on a 20x9 for example probably won't make much difference on a supercharged car. I don't know what size you run now.

    Are you looking for a street tire or drag radial? If I remember correct I thought you had another thread where you said you can't install drag radials where you live?

    With your power levels you really need a 275/35 drag radial if you a staying with a 9" wide wheel. They are much softer than street tires so they will have better traction but they won't last as long.
     
    Last edited: Nov 23, 2015
  5. demas

    demas Member Established Member

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    I currently have 255/35/20 MPSS which is much better but I still need more grip.
    I am looking for something which can I use for daily
     
  6. evil281

    evil281 Member Established Member

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    How many miles do you drive in a year? The nitto nt555R is what I run. As far as drag radials go they will provide a bit more miles of use than other drag radials. They are not the stickiest of drag radials but they will be better than a street tire.

    Something to consider at your power level. I think people see around 15k miles on nt555r's depending on how you drive.
     
  7. demas

    demas Member Established Member

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    R they stickier than MPSS?
    And do you think I will get much more grip with 275 MPSS?
     
  8. demas

    demas Member Established Member

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    Guys,
    If I use 1.5" wheels spacers, will it help improving traction and stability?
     
  9. Rct851

    Rct851 Well-Known Member Established Member

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    Stop trying to figure out how to make the 9" wheel work. Deal with the limited traction until you can buy wider rims.
     
  10. Sleipnir 5O

    Sleipnir 5O Member Established Member

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    A 20" drag radial for our cars with a 9" wheel is going to be a little difficult. 275/40R20 is the only one that comes to mind. That tire will be nearly 29" tall though.
     
  11. lsxjunkie

    lsxjunkie Member Established Member

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    Spacers won't help. Don't go wider than 275 on a 9" wheel. MPSS are not as sticky in a straight line as the same size drag radial, but will last much longer. It will also not handle nearly as well, as drag radials are meant to flex in the sidewall.
     
  12. liter of cola

    liter of cola Member Established Member

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    anything you put on that 20"x9" wheel isn't gonna give you much of a gain in traction other than a different tire compound like the nitto nt555r, and im pretty sure even that wont give you the amount of traction your looking for.

    they make the nt555r in 275/40/20 so get a pair and try em out, just be careful in the rain.. and if your gonna get a whole new set of tires don't put nt555r's on the front. if you want nitto's all around put the nt555's up front. the R is the drag radial.

    Drag radial NT555R-

    http://www.nittotire.com/race-tires/nt555r-dot-compliant-competition-drag-radial-tire/

    Performance summer tire NT555-

    http://www.nittotire.com/passenger-tires/nt555-summer-ultra-high-performance-tire/

    your absolute best bet for max grip and maintaining the ability to drive on the street would be going with a 20"x11" rim in the rear (if you really wanna stick with 20's) and getting the nitto nto5r 315/35/20.

    Drag radial NTO5R-

    http://www.nittotire.com/race-tires/nt05r-dot-compliant-competition-drag-radial-tire/

    really be careful in the rain with these ^

    if you don't want to go with a drag radial and seriously cant get a new set of wider wheels, consider the Michelin pilot sport cup 2's in 265/35/20 or the Dunlop sport maxx race in the same 265/35/20.

    good luck bro, try to get some 11" wide wheels.

    and yes if you add 1.5" spacers it will help your stability and traction while cornering, but wont affect your straight line grip.
     
    Last edited: Nov 29, 2015
  13. demas

    demas Member Established Member

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    Great info guys!
    Thank you so much
     
  14. demas

    demas Member Established Member

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    A small update:
    I bought 2 315/35/20 NT05 used from a friend, they are in pretty good shape.
    I will try them out soon :)
     
  15. demas

    demas Member Established Member

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    BTW, will 315/35/20 fit well or will i need spacers?
     
  16. q6543

    q6543 Member Established Member

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    Post pics when you get them mounted, I didn't think there was enough rim for that much tire.
     
  17. evil281

    evil281 Member Established Member

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    There is no way that is going to fit on a 9" rim (safely). My 275/35 nt555 already seems just a bit big on my 9" front wheels.
     
  18. demas

    demas Member Established Member

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    I didn't mention it but I got them with wheels already mounted :)
     
  19. evil281

    evil281 Member Established Member

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    Well to answer your question of will they fit we need to know what size wheel and offset.
     
  20. demas

    demas Member Established Member

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    I am not sure but will look into it
     

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