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  1. #1
    Registered Member One Ring
    Join Date
    Dec 06 2018
    AZ Member #
    432672
    Location
    Detroit, MI

    Going up one sidewall size to 245/50-R18 Winter Tires on 2017 A6

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    Good evening,

    With winter upon us in Michigan I decided to purchase a set of winter tires. I was planning to get 235/50-R18s vs. the standard 245/45-R18s to get a little bit more sidewall to protect against potholes. However, I mistakenly bought 245/50-R18s which came today. Looking at tire comparison tools it increases the diameter by 0.9", or 3.3% vs. stock (245/45). Are these tires too big, or should i be fine with utilizing them? It was my mistake, but I don't want compound the problem by trying to save some money by keeping them and causing more issues.

    Thanks!!

  2. #2
    Established Member Two Rings Slickn's Avatar
    Join Date
    Apr 08 2012
    AZ Member #
    91424
    Location
    Massachusetts

    I run 255/45/18 for my winter tires. I ran the tire size comparison between my size and yours... It's a .6" difference in height... So .3" more in each direction. There should be no problem fitting .3" of extra tire in there.

    Good luck,
    Nick

    Sent from my XT1635-02 using Tapatalk
    2014 Audi A6 3.0t Prestige - 20" sport. EPL stage 2. Eurocode sway bars.
    2001.5 Audi A6 2.7t - K04/997 hybrids tuned by EPL.

  3. #3
    Registered Member One Ring
    Join Date
    Dec 06 2018
    AZ Member #
    432672
    Location
    Detroit, MI

    Thanks for replying. From the photo it looks like the clearance won't be an issue. The local tire shop which i was going to for getting them mounted advised against installing them because it was more than 3% larger than stock (that was their cutoff).

  4. #4
    Established Member Two Rings
    Join Date
    Feb 01 2017
    AZ Member #
    392161
    Location
    Seattle WA

    You will have some speedometer error that is all.



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