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Thread: Bigger tires on style 135 ?

  1. #1
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    Bigger tires on style 135 ?

    I have the stock ZHP wheel/tire combo. I notice every time I drive by a speed sensor it's says I'm going 3 mph slower than my speedo indicates. I had this same situation with my truck and ended up going up a size when I purchased new tires. That worked out perfectly.

    Has anybody ever went up a tire size on their style 135s ? I was thinking of going from:

    Front 225/40/18, Rear 255/35/18

    to

    Front 225/45/18, Rear 255/40/18

    According to the online tire calculator, that change would net a 2.7 mph increase which would make the speedo almost exactly correct and maybe provide a little smoother ride.

    Has anybody ever tried it? Does that tire combo fit or will it rub?

  2. #2
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    Just have the speedo calibration done using pa soft software.

    Sent from my Pixel 4 XL using Tapatalk

    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  3. #3
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    Quote Originally Posted by Vas View Post
    Just have the speedo calibration done using pa soft software.

    Sent from my Pixel 4 XL using Tapatalk
    This.

    Sent from my Pixel 5 using Tapatalk
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun



    It's not the car you drive, it's how you drive it.

  4. #4
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    Quote Originally Posted by Dave1027 View Post
    I have the stock ZHP wheel/tire combo. I notice every time I drive by a speed sensor it's says I'm going 3 mph slower than my speedo indicates. I had this same situation with my truck and ended up going up a size when I purchased new tires. That worked out perfectly.

    Has anybody ever went up a tire size on their style 135s ? I was thinking of going from:

    Front 225/40/18, Rear 255/35/18

    to

    Front 225/45/18, Rear 255/40/18

    According to the online tire calculator, that change would net a 2.7 mph increase which would make the speedo almost exactly correct and maybe provide a little smoother ride.

    Has anybody ever tried it? Does that tire combo fit or will it rub?
    No, thatís not what you want. Do this instead. My speedometer is perfect.

    Front: 245/40-18
    Rear: 265/35-18




  5. #5
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    Quote Originally Posted by Hermes View Post
    No, thatís not what you want. Do this instead. My speedometer is perfect.

    Front: 245/40-18
    Rear: 265/35-18
    Sweet! And they looks great too. Has a slightly meatier look. Thanks

  6. #6
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    Quote Originally Posted by Dave1027 View Post
    Sweet! And they looks great too. Has a slightly meatier look. Thanks
    I agree with Hermes, running this on mine as well!
    trancenation's Alpine Weiss ZHP

  7. #7
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    Aug 2017
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    Stamford, CT
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    Bigger tires on style 135 ?

    Quote Originally Posted by Dave1027 View Post
    Sweet! And they looks great too. Has a slightly meatier look. Thanks
    Running Michelin PS4 265 in the back and lowered on stock springs and Koni yellows scraped paint on non-rolled rear archers as well as tires have visible marks touching the arches especially if you plan to carry anyone in the back... keep an eye on it.



    Sent from my iPhone using Tapatalk


    Depends on tire brand but it looks like P.O. was also trying some aggressive tires (Conti ExtremeContact DW 265/35/R18) and it scraped not only the outside of the arches but also on the inside... luckily where it scraped there was no rust forming due to constant touching... had to clean/prime/sealant/etc. looks terrible but no one can see it, and if it keeps rust at bay I will be ok with it.

    Wide tires look great, but also need upgrades to suspension/drivetrain (rear adjustable sway bar, maybe an LSD, etc.) to dial it in... something to keep in mind.
    Last edited by AM1GO; 11-28-2021 at 10:14 AM.

  8. #8
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    Isn't 265 a bit too big for an 8.5" wide wheel?

    It's outside of the maximum tire width on the chart floating on the internet.
    https://www.tiresandco.ca/tire-equivalence-advice.html

  9. #9
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    Quote Originally Posted by holyc0w View Post
    Isn't 265 a bit too big for an 8.5" wide wheel?

    It's outside of the maximum tire width on the chart floating on the internet.
    https://www.tiresandco.ca/tire-equivalence-advice.html
    My sons 265 sit on a replica style 359 18x9.5 in the back. For stock size they will be a stretch imho and on my ZHP I have a square setup 255ís sitting on a 2 pairs of rears


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  10. #10
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    TIRERACK.com - Revolutionizing Tire Buying
    There is a bunch of threads about 265 fitment issues, not worth it imho

    Apex Arc-8 18"x9" ET42- 265/35/18 Fitment Issues


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