265/40-18 on stock wheels(all around)
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2004-2007 Cadillac CTS-V Performance Mods Discussion, 265/40-18 on stock wheels(all around) in Cadillac CTS-V Series Forum - 2004 - 2007; I know from a little research that they will fit with stock suspension... So I'm just wondering who has run ...
  1. #1
    H-town_V's Avatar
    H-town_V is offline Cadillac Owners Fanatic
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    265/40-18 on stock wheels(all around)

    I know from a little research that they will fit with stock suspension... So I'm just wondering who has run this wheel/tire setup. What's the pros if any or the cons.

    I just ordered some continental dw tires in 265/40-18 and can't wait to get them put on.


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    NickL84's Avatar
    NickL84 is offline Cadillac Owners Member
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    Re: 265/40-18 on stock wheels(all around)

    As long as the tires are of equal or better load/speed rating, you should be fine. You may run into rubbing issues in the front while in a full turn, but I can't confirm that.

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    BigDaddy-V is offline Cadillac Owners Fanatic
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    Re: 265/40-18 on stock wheels(all around)

    I don't have any clue how they will do on the car but will look forward to hearing what you say about them. as I just went stock size when I got new tires last year because I wasn't sure if we could do wider on that rim. I would like to at some point if those work get some wider ones.

    BDV

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    PISNUOFF Guest

    Re: 265/40-18 on stock wheels(all around)

    Besides looking small in the wheel wells and your speedo being off you shouldn't have any issues. I've run 275/40's on the rear for many years so fitting a 265 on the stock rim is not an issue.

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    carlson_mn is offline Cadillac Owners Enthusiast
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    Re: 265/40-18 on stock wheels(all around)

    They're going to be a little smaller than stock size tires is all. There's pros and cons to go along with that.

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    PISNUOFF Guest

    Re: 265/40-18 on stock wheels(all around)

    I thought 255's were the largest you could go on the front without hitting the knuckle with the inside top of the tire.

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    H-town_V's Avatar
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    Thanks all... If I have any issues up front I can exchange them for another size. ----------
    Quote Originally Posted by PISNUOFF
    Besides looking small in the wheel wells and your speedo being off you shouldn't have any issues. I've run 275/40's on the rear for many years so fitting a 265 on the stock rim is not an issue.
    I hope the wheel gap is not awful. The tire diameter is only 1.3% smaller than stock.

    Also can a tuner correct the speedo?

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    UnsafeAtAnySpd's Avatar
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    Re: 265/40-18 on stock wheels(all around)

    I've run 255/40, 265/35, and 275/35 up front, but all on TD wheels.

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    H-town_V's Avatar
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    Quote Originally Posted by UnsafeAtAnySpd
    I've run 255/40, 265/35, and 275/35 up front, but all on TD wheels.
    Any rub issues with the 265's or bigger. I really like the TD wheels... However I've stashed some money away for a set of f14's in the spring

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    carlson_mn is offline Cadillac Owners Enthusiast
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    Re: 265/40-18 on stock wheels(all around)

    I'm currently running 255/45 tires. Not as wide but taller than stock. If I hit a major dip or bump in the road at speed the fronts rub. Other than that no contact.... makes me think you will be okay. Personally I couldn't stand the wheel well gap with the stock tires which is why I went a .5" larger, not to mention I kinda like the beefy look and the extra 10mm doesn't hurt. I can notice the slight gear reduction and I like it especially in 1st gear.

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    PISNUOFF Guest

    Re: 265/40-18 on stock wheels(all around)

    Weird. I couldn't even get the tip of my pinky between the tire and knuckle with 255/45's up front on stock 8.5" wide wheels.

    A tuner can fix the speedo in two minutes. The speedo will only be 2.5% off.

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    UnsafeAtAnySpd's Avatar
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    Re: 265/40-18 on stock wheels(all around)

    Quote Originally Posted by H-town_V View Post
    Any rub issues with the 265's or bigger. I really like the TD wheels... However I've stashed some money away for a set of f14's in the spring
    I haven't had any issues with those up front or 285s in the rear and the car is now lowered. I run a decent amount of negative camber (not enough to not trash the edges of R6s though).

    Quote Originally Posted by PISNUOFF View Post
    Weird. I couldn't even get the tip of my pinky between the tire and knuckle with 255/45's up front on stock 8.5" wide wheels.

    A tuner can fix the speedo in two minutes. The speedo will only be 2.5% off.
    It might be the different offset or maybe the lower profile tires. It was tight though.

    I do think eventually I want to get some 19s for the street and switch the TDs back to track use. Maybe I'll still keep the stockers for rain tires.

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    2007V is offline Cadillac Owners Member
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    Re: 265/40-18 on stock wheels(all around)

    I have 265's up front, stock suspension and stock alignment specs. It is close to the knuckle but fine. 275s in the front would probably take a small wheel spacer

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    H-town_V's Avatar
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    Quote Originally Posted by 2007V
    I have 265's up front, stock suspension and stock alignment specs. It is close to the knuckle but fine. 275s in the front would probably take a small wheel spacer
    265/40-18 or another size? Can you post pics?

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    2007V is offline Cadillac Owners Member
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    Re: 265/40-18 on stock wheels(all around)

    Quote Originally Posted by H-town_V View Post
    265/40-18 or another size? Can you post pics?
    Yep, 265/40zr18 Michelin PSS.

    I can email you some pics but it won't let me upload from my iPad. They really don't show much. I can get an inspection mirror I between the knuckle and the tire but that is about it. Probably 3/16" or 1/4" of clearance. It is very close but clears.

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