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Rim Width vs. Tire Width and Performance

This is a discussion on Rim Width vs. Tire Width and Performance within the Wheels and Tires forums, part of the General Help category; 275 on 11 inch will work and will handle pretty good. But it will look stretched. Like I've said before ...

  1. #21
    Senior Member raynor139's Avatar
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    275 on 11 inch will work and will handle pretty good. But it will look stretched. Like I've said before my 295 looks too stretched on my 10.5 wheel at least for my taste.
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  2. #22
    Senior Member Naaman's Avatar
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    Hmmm.... I'm wondering whether the model of tire affects the "stretch," since not all tires of a given size sport identical dimensions.

  3. #23
    Something Diabolical... chuckie669's Avatar
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    A lot of manufacturers have a slight difference in width on the same sizes. The effect would be minimal.

    An 11in rim out back would be overkill imo for a 275 tire. Plus as stated before depending on offset it may catch the bump stop. My 17x11 would catch right within the lip on bump stop.

  4. #24
    Senior Member Naaman's Avatar
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    Yeah, I think I'll probably go with 10" all the way around, but I still haven't found out whether that set up (275/35/18) will fit on a 10" wheel on the front of my car. It's lowered on Strano springs (about 1.2").

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    Senior Member Whamhammer's Avatar
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    Quote Originally Posted by Naaman View Post
    According to Michelin:



    For the size I want, Michelin seems to be saying that an 11" rim width will result in the best handling/steering response, as this is the widest rim on which 275/35/18 will fit properly.
    Im surprised that the suggested that size would fit on an 11"

  6. #26
    Senior Member theorangeguy's Avatar
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    What...? How can they say that a 275 best fit is an 11 inch wheel...? Is Michelin pro ricer stance or something??
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    I like being able to rotate tires from front to back and vice versa. With different wheel and tire sizes from front to back, you cannot do that.
    It's on jackstands.

  8. #28
    Senior Member theorangeguy's Avatar
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    Meanwhile at Michelin headquarters...


  9. #29
    Senior Member Naaman's Avatar
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    I was looking at my current tires today. 275/40/17 on 9.5" rims. The look like "normal" wheels/tires are supposed to look. I wouldn't mind going with a 9.5", although I'm wondering what I'd be "missing" if I went with a 10." But, if I can't confirm that 10" will fit up front with 275s on 18" wheels, then I'll just go with the 9.5" instead.

  10. #30
    Senior Member raynor139's Avatar
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    I have 18x10.5 up front with 295 width tires. Front is easier to fit wider wheels and tires then the rear. Required no modifications at all. In the rear I had to grind the bump stops down.

  11. #31
    Senior Member Naaman's Avatar
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    98 Z28 Vert M6

    10.5 up front? Stock ride height or are you lowered at all? I'm lowered about 1.2".

  12. #32
    Senior Member raynor139's Avatar
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    Stock height. But already measured for lowering and still have plenty of room. In fact lowering will be my next item on the list since the size of the gaps are driving me nuts.

  13. #33
    Senior Member raynor139's Avatar
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    Quote Originally Posted by theorangeguy View Post
    What...? How can they say that a 275 best fit is an 11 inch wheel...? Is Michelin pro ricer stance or something??
    I thought the same thing the first time I saw that. Then started reading posts on other forums about autocross/road racing and saw a lot of various cars running setups like that. Looks weird on a muscle/pony car so I wouldn't do it.

  14. #34
    Senior Member Whamhammer's Avatar
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    Quote Originally Posted by raynor139 View Post
    I thought the same thing the first time I saw that. Then started reading posts on other forums about autocross/road racing and saw a lot of various cars running setups like that. Looks weird on a muscle/pony car so I wouldn't do it.
    My first question why are they doing it? Having a firm sidewall is great for handling, bit stretching the sidewall enough to comprimise the tires ability to stay mounted when the car hits bumps or heavy cornering pressure is another. Im run ing 245/45/17 snow's on my 17 x 9 WS6 wheels and I think they are somewhat too narrow for that wheel. I wouldnt go more than x 10 on a 275 width for a performance tire.

  15. #35
    Senior Member Naaman's Avatar
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    After a lot more research on this, I've decided on some TSW Interlagos wheels. They are 18x9. This is a bit of a trade-off because it will mean that a 275 tire will have more flex in the side wall (I guess). But, if I'm not mistaken, the stock wheels are 9 inches wide and mount a 275 tire (?). So I decided to look into doing this set up.

    After some research on the types of wheels I have on there now (C4 replicas), I've come to the conclusion that they probably weigh around 26-27 pounds each. The TSWs weigh 18 pounds each. My current tires each weigh 29 pounds, and the Super Sports that I'm shopping for weigh 25 pounds.

    So, if I can pull it off (the wheels plus tires comes out to big money), that would be a weight savings of 10+ pounds of unsprung, rotating mass at all four corners.
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  16. #36
    Senior Member Whamhammer's Avatar
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    Quote Originally Posted by Naaman View Post
    After a lot more research on this, I've decided on some TSW Interlagos wheels. They are 18x9. This is a bit of a trade-off because it will mean that a 275 tire will have more flex in the side wall (I guess). But, if I'm not mistaken, the stock wheels are 9 inches wide and mount a 275 tire (?). So I decided to look into doing this set up.

    After some research on the types of wheels I have on there now (C4 replicas), I've come to the conclusion that they probably weigh around 26-27 pounds each. The TSWs weigh 18 pounds each. My current tires each weigh 29 pounds, and the Super Sports that I'm shopping for weigh 25 pounds.

    So, if I can pull it off (the wheels plus tires comes out to big money), that would be a weight savings of 10+ pounds of unsprung, rotating mass at all four corners.
    Lopping off 40 unsprung pounds should feel like the car lost 160 pounds, you should notice the difference on that one! Are you going with a 35 series tire to keep it close to factory tire height ?

  17. #37
    Senior Member Naaman's Avatar
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    Yes, it will be 275/35/18... whenever I scrounge up the money for it... :P

  18. #38
    Member DarrenWS6's Avatar
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    My car has 255/40-17 up front ( on the car when I bought it ) and the previous owner put on OE size 275/40-17 tires on the rear. It doesn't look too different but I somewhat believe it was for a staggered look, however I don't know what size tire the previous owner replaced. Could have also been a 255/40. All I know is, i'm putting 275/40 back on when I change them out.


    Quote Originally Posted by raynor139 View Post
    Our cars aren't corvettes. Which were designed with staggered in mind. So unless your drag racing the car I would put the same size at all 4 corners it will drive/handle a whole lot nicer.
    I agree. It sort of looks cool, but if it wasn't designed to run that way, can't quite say I am for it. I'm all for larger wheels/tires on trucks and some cars, but staggered sizing I've never mentally liked.
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  19. #39
    Senior Member Naaman's Avatar
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    Yeah. I'm wanting to be able to rotate my tires. Mine came with staggered from the previous owner as well.

    My problem is that I've been bitten by a Michelin bug, and now I just don't want anything other than Michelin tires on my car.... and the PSS don't come in 275 for a 17" rim. (Plus, I want rims that actually look good: the C4 sawblades are hideous in my opinion.)

  20. #40
    Senior Member Naaman's Avatar
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    98 Z28 Vert M6

    Finally got my Interlagos (TSWs) installed with the Michelin Super Sports.

    It looks like a totally different car...!

    When the fronts were installed, the tech notified me that at full lock, the inside of the tire slightly rubbed against the front of the wheel well (I went with 275s up front instead of the 255s that I used to have on there). When he showed me, I couldn't really tell that there was any contact. Whatever. When the tread wears down a little, it won't rub.

    The rub may be due to the Strano springs lowering the car a bit... other than that, I'd assume its just too wide a tire.

    I'll post pics when I get a chance to take some. Hopefully this coming week. I'll also post impressions once I've put the tires through their paces.

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