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Tire size recomondations on 17x9 rims

Discussion in 'SN95 Cobras' started by Fourtrax250R, Mar 5, 2009.

  1. Fourtrax250R

    Fourtrax250R Member Established Member

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    hey guys, looking to get 17x9 cobra R's on all 4 corners. my question is, what the max size i can go on the rear with no rim fitment/wheel well clearance issues. I was thinking 275/40/17? Now, on the front, do I want less wide tires, maybe 245/255?? or can i go with 275/40/17 also for the best ride/handling. Im not a big drag racer/auto crosser, just looking for good traction, and good responsive steering and handling. I do know that the oem tire sizes on these cobras where really thin tires. Thanx guys!!:beer:
     
  2. ArkansasMystic

    ArkansasMystic Member Established Member

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    275/40/17 is perfect IMO. Unless you're gonna run a tire like a Nitto which runs small, that's as wide as you need to go on the 17x9 rim. The front is completely up to you. I run 275/40/17's all around and kinda like it. The biggest thing is that I can still rotate tires. With the wider tires up front, you'll notice the car following the ruts in the road a lot more. That's the only downside I've found.
     
  3. Fourtrax250R

    Fourtrax250R Member Established Member

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    I figured the 275's up front would want to follow the ruts in the street. How annoying is it?
     
  4. ArkansasMystic

    ArkansasMystic Member Established Member

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    It's hard to say. I really don't mind it that much, and I think 90% of my problems is bumpsteer. I'm gonna be adding a bumpsteer kit sometime soon and only then will I know. The problem wasn't as bad with the 245/45's, but never has felt quite right. It is not only the size of the tire but also the tread type and sidewall stiffness that causes the "tram lining". Just because mine aren't that bad, yours could be totally different. My Cobra is my only vehicle and daily driver, it isn't bad enough to make me wanna go back to narrower tires.
     
  5. milktasd2

    milktasd2 Member Established Member

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    I have 275 all the way around as well and its not that annoying and being able to rotate the tires is nice.
     
  6. Blown4v

    Blown4v Just Another Sell Out Established Member

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    275/40
     
  7. Gallows

    Gallows Make My Day... N/A Premium Member

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    Another vote for 275/40's. I just put 315's on the rear and moved the 275's to the front but won't be trying them out for at least another six weeks.
     
  8. gq916

    gq916 Member Established Member

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    275/40 is ideal for the rear...u could also get 265/40 or even 255/40...i would get whatever is cheaper since u dont race
     
  9. sc98cbra

    sc98cbra Active Member Established Member

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    Whatever you do, dont get directionals. I hate them suckers! I cant wait to get rid of mine.
     
  10. nckissfan

    nckissfan Nevermore Established Member

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    I have 255's up front, and 275's in the rear. Can you run bigger in the rear??

    I remember seeing this girl with 245's on a 9.5" rim. Talk about tacky, and looking unsafe
     
  11. SnkBitPny

    SnkBitPny New Member Established Member

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    275/40's on the front and 315/35's on the rear. Even if you don't race, the extra "meat" will look good.
     
  12. ArkansasMystic

    ArkansasMystic Member Established Member

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    Bigger isn't always better. After a 275 you really don't gain much. Wider is possible, but not really safe, such as these 315's on stock rims FTL:
    TireBuldge.jpg
     
  13. semperfimrn1

    semperfimrn1 Active Member Established Member

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    ^wow
     
  14. nckissfan

    nckissfan Nevermore Established Member

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    that looks really strange
     
  15. AtlanticCobra98

    AtlanticCobra98 Ummm Yeah!!!! Established Member

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    not to change subject but is that why on my 275x35x18 it seems to follow every single rut it the road? is there a way to fix that.. its so annoying to have to fight it everytime the road is not even...
     
  16. SnkBitPny

    SnkBitPny New Member Established Member

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    I guess its all personal preference. Each to his own. A friend of mine runs 275s on the front and 315s on the back of his 03 cobra with the stock 17x9 wheels. I think it looks good. You can feel it "walk" a little bit from the grooves in the road, but hell, I can feel that on my 17x8 wheels as well even with the smaller tires.
     
  17. SnkBitPny

    SnkBitPny New Member Established Member

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    Well, it stands to reason that the wider the contact patch on your tire, the more road surface you are "grabbing". It just makes imperfections in the road more noticable.
     
  18. Tabres

    Tabres Not without incident Established Member

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    I used to be completely fine with the 275's on the front of my car. They never gave me trouble with tramlining. It was great.

    And then I moved to a larger city with much more traffic, and apparently vastly worse groves in the roads. And now I hate the 275's...

    I personally would put a 255 on the front.
     
  19. ArkansasMystic

    ArkansasMystic Member Established Member

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    A bumpsteer kit and 03 Cobra front control arms will fix most of the tramlining. Unless it was a 315 Nitto (beacause they run narrow), I don't see it fitting safely on a 17x9. The above pic is just for laughs, the guy doesnt drive it like that.
     
  20. wakeover

    wakeover New Member Established Member

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    I run 275/45/17 on 17x9 rims in the front and on the back 315/35/17 on 17x10.5 rims. No rubbing that I can hear or see.
     

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