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  1. #1
    Established Member Two Rings Mr.Ridiculous's Avatar
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    245-40/18 Silly Tire Size for 18x8

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    It seems like the standard tire size to be bought for most 18 inch rims is 235-40/18, but would 245-40/18 work fine too?

    I was thinking I'd go slightly wider to provide a little more leeway with curb rash (parents are not the greatest at parallel parking).
    But will the 245 actually make curb rash any less likely?
    Also are those tires going to look super big? Will I be like monster truck status?

    Thanks for all opinions. If anybody has pictures of their car on 245-40/18s that'd be MUCH appreciated.

  2. #2
    Veteran Member Four Rings Sharkfin's Avatar
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    Nov 01 2007
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    22242
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    B7 A4 2.0TQT
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    NC

    The 245s won't help with curb rash really, and the 40 aspect ratio is going to look beefy (in a bad way) and if you are lowered it will rub. Go with 245/35/18 if you want to be different

  3. #3
    Established Member Two Rings Mr.Ridiculous's Avatar
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    mmm right, yea that beefy look is kinda what i'm worried about
    BUT, i'm also not lowered... like at all. haha i have the non-sport suspension, so i figured maybe the 245-40 would eliminate some of that wheel gap
    but so you think it'll still look dumb?

  4. #4
    Veteran Member Four Rings Sharkfin's Avatar
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    Nov 01 2007
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    B7 A4 2.0TQT
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    NC

    It will fit but it won't eliminate wheel gap, it will look more monster truckish

  5. #5
    Veteran Member Four Rings Calabria's Avatar
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    Dec 10 2006
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    14077
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    '00 1.8TQM
    Location
    LA

    245/40/18 will def fit, and def help against curb rash since its a wider tire, specially on a 18x8. I would run a 35 series tire unless they were 19s. A 45 series tire will give it that beefy look. I run a 235/40/18 on 18x8.5 and it looks nice, fit is almost perfect IMO. Audi also uses a 235/40 tire on they 18s for the B6 A4 USP, S4 and B7 S4
    (Ka-La-Bre-Ah)

  6. #6
    Established Member Two Rings Mr.Ridiculous's Avatar
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    hmm yeah. i gotchya. this is tough
    what do you think about the 245/35/18 idea then?
    we think that wouldn't look as beefy?

  7. #7
    Veteran Member Four Rings beemercer's Avatar
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    Aug 14 2008
    AZ Member #
    31944
    My Garage
    '90 Cq - '13 R
    Location
    obamaland

    I love my 245/40/18's. I like the extra meat.
    You represent the idiocy of today.

  8. #8
    Veteran Member Four Rings Operator's Avatar
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    Feb 06 2009
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    Audi A4, Mit. Montero
    Location
    Goldsboro, NC

    Quote Originally Posted by beemercer View Post
    I love my 245/40/18's. I like the extra meat.
    You have any pics?
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  9. #9
    Established Member Two Rings positiv_rate's Avatar
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    Apr 26 2008
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    28111
    Location
    Montreal, QC

    I run 245/40R18 on my S-Line 8" rims for my winters. Yeah, looks a little chunkier, but I kinda like the additional 0.15" (3.81 mm) in sidewall thickness to soak up ruts/potholes/frost heaves and such. I'll run the same size for my summers, as 235s look a little too stretched on my 18x8.5" CHs & don't offer enough rim protection. I don't mind a little more meat on my sidewalls: rubber band tires aren't too helpful on the track.

    But I wouldn't go with that size on an 8" rim for summer.
    Neuspeed flash | K&N | JHM solid shifter | 034 Turbo inlet hose | Neuspeed snub | APR 2.5" catback | 034 HFC | ER DSMICs | 034 IC hose kit | Neuspeed SS lines | StopTech 332mm BBK | RS4 sway | Koni C/Os | BBS CH 18X8.5 | H&R 10mm spacers | Michelin PSS 245/40/18 - Gislaved NordFrost 5 245/40/18 | Dice i-VW-T |

    As I go through life, the following becomes painfully obvious: common sense, ain't that common...

  10. #10
    Veteran Member Three Rings bloodstar57's Avatar
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    May 15 2007
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    My Garage
    07 A4 2.0TQM TI, 09 S5 QM
    Location
    Queens, NY

    My car when i had S-line suspension..... 18/8.5, 245/40

    Even with that much meat i still bent a lip


  11. #11
    Senior Member Two Rings rs6's Avatar
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    Mar 23 2005
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    5814
    My Garage
    2008 Cayenne,2012 Range Rover Sport
    Location
    San Francisco

    I"m running 245/40/18 on stock 18" S-Line wheels, lowered on H&R/Koni. No rubbing at all.

  12. #12
    Senior Member Two Rings Longbeach24's Avatar
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    Aug 08 2007
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    20166
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    B7 Ibis White 6MT
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    RI

    I have both installed on my car right now, due to finding a bubble on one of my tires (riding on a spare until tomorrow) so I can give you a nice comparison shot. Same size wheel with 235 and 245 tires. Give me a minute. Certainly does not make that much of an aesthetic difference or make it suddenly look like a monster truck, lol.

  13. #13
    Veteran Member Four Rings vdubjetta02's Avatar
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    Mar 26 2007
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    Colorado

    235/40 or 255/35
    2013 Golf R: APR stage 2+

  14. #14
    Veteran Member Four Rings Sharkfin's Avatar
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    Nov 01 2007
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    My Garage
    B7 A4 2.0TQT
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    NC

    255/35 won't fit in the front

  15. #15
    Veteran Member Four Rings Operator's Avatar
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    Feb 06 2009
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    Audi A4, Mit. Montero
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    Goldsboro, NC

    Quote Originally Posted by Longbeach24 View Post
    I have both installed on my car right now, due to finding a bubble on one of my tires (riding on a spare until tomorrow) so I can give you a nice comparison shot. Same size wheel with 235 and 245 tires. Give me a minute. Certainly does not make that much of an aesthetic difference or make it suddenly look like a monster truck, lol.
    Thanks ahead for the comparo pics!!! It'll help alot!
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  16. #16
    Veteran Member Three Rings casuso's Avatar
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    Sep 19 2006
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    Mexico

    I have 245/40-18, no rubbing at all but yes, it looks kind of fatty. I am planning also to change for 245/35 or 235/40...


    1.8T / Phantom Black Sline / Eibach Pro Kit with OEM sport shocks / 18" R8 Reps / 245-40 tires / LED headlights / 4300 HID / Quad tips / S4 rear Valence / Votex front lip / CC / Blacked out grill / MB Quart Amp & Kikcker 12" Sub
    *YES it is an Sline, just a different version available ouside US.

  17. #17
    Senior Member Two Rings Longbeach24's Avatar
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    Aug 08 2007
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    B7 Ibis White 6MT
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    235:

    245:

  18. #18
    Veteran Member Three Rings Elohite's Avatar
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    Jan 14 2008
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    San Antonio, TX

    ^ lol. you know a tire is gonna look the same from a from a side view no matter the width... side views are to see the difference in the sidewall sizes

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  19. #19
    Veteran Member Three Rings casuso's Avatar
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    Quote Originally Posted by Elohite View Post
    ^ lol. you know a tire is gonna look the same from a from a side view no matter the width... side views are to see the difference in the sidewall sizes
    Well you are right, the thing here is to see how the same sidewall size changes depending on the tire width.
    1.8T / Phantom Black Sline / Eibach Pro Kit with OEM sport shocks / 18" R8 Reps / 245-40 tires / LED headlights / 4300 HID / Quad tips / S4 rear Valence / Votex front lip / CC / Blacked out grill / MB Quart Amp & Kikcker 12" Sub
    *YES it is an Sline, just a different version available ouside US.

  20. #20
    Senior Member Two Rings Longbeach24's Avatar
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    Aug 08 2007
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    B7 Ibis White 6MT
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    lol to you. So you're saying that there is no difference in sidewall between a 235 and a 245 tire on the same wheel? That would be incorrect. It's almost 1/4 inch thicker.

  21. #21
    Active Member Two Rings
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    Mar 09 2009
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    Lakeland, FL

    Dang! I like those R8 reps on an A4! That may be the nicest I've seen with those rims so far! Where'd you get em?

  22. #22
    Active Member Two Rings WESRACE's Avatar
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    Jan 20 2009
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    37666
    My Garage
    2000 Chevrolet Silverado Z71
    Location
    Spring City, TN

    what about track use? Would you getter performance out of the 245? Wider contact patch?
    Would there be any issue with a 245/40R18 on a 18x8 RS4 Rep with a 35 offset? I don't want to rub during hard cornering. Looking to drop only about 1.2 F/R with PSS9s. I am specifically looking at the RE-11s.
    Last edited by WESRACE; 04-27-2010 at 02:55 PM.

  23. #23
    Active Member Two Rings WESRACE's Avatar
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    Jan 20 2009
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    My Garage
    2000 Chevrolet Silverado Z71
    Location
    Spring City, TN

    BTT...any help guys? About to buy the 245s.

  24. #24
    Senior Member Three Rings Renegade5's Avatar
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    Mar 01 2010
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    MA
    Items for Sale

    Anyone wanna add on putting 235/45R18 on our car? I ask becuase, for 4 winters now i have run Dunlops Winter sport M3's and LOVE them!! My last A4 came w/ the stocker 5 spokes 17" which was my winter set up, w/ my current slilne ti, i plan to use the stock 15 spoke as winters but I can only find the M3's in that 235/45R18 size. I am only running the sport suspension, but 50/50 chances i'm dropped on stasis end of the summer. thanks in advance

  25. #25
    Registered Member One Ring
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    Nov 11 2009
    AZ Member #
    50563
    Location
    Honolulu/Hawaii

    Same dilema for me, 235/40/18's sold out! 245/40/18's are the next option. Anyone with experience with Bridgestone Potenza RE 760's? Summer tires and I'm in Hawaii, I guess I don't really need A/S tires...



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