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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Tire wall of almost 3 inches....



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      04-03-2008, 07:49 PM   #1
emjei
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Tire wall of almost 3 inches....

I just bought new tires italian made ( marangoni ) the tire wall is almost 3 inches tall they are 275/30 in size 19.....is this normal Im not too happy about it....'

Is 30 all the same in all tires brand
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      04-03-2008, 08:44 PM   #2
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Pics!
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      04-03-2008, 09:14 PM   #3
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Yes, pics please.
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      04-03-2008, 09:38 PM   #4
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pictures are too big in MB
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      04-03-2008, 10:16 PM   #5
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See pics attached.
Attached Images
File Type: pdf BMW2.pdf (517.5 KB, 270 views)
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      04-03-2008, 11:33 PM   #6
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looks fine! it just doesnt have the concave shape
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      04-03-2008, 11:43 PM   #7
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man, please tell me that not an m3 badge you have on the car.
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      04-04-2008, 12:01 AM   #8
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i think it's just an ///M badge which is almost just as bad... BAD

tires are alright but not feeling the rims
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      04-04-2008, 12:17 AM   #9
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tires look fine.... i lie ur wheels... but M badge HAS to go
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      04-04-2008, 12:23 AM   #10
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give him a break.... although i dont know if this is what happened to him, but in some countries, the M badge comes on the car fresh outta the dealer. dont know why, but dont ask me. this was more popular with the older BMWs (E30s, E34s, etc).

it's a different story if he slapped it on however....
 
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      04-04-2008, 05:26 AM   #11
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Everything looks fine except that M badge... Why do people ever think thats a good idea?
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      04-04-2008, 07:36 AM   #12
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They do look a bit like mudders. I need to take pics of mine and see if there is a difference.
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      04-04-2008, 10:24 AM   #13
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Off with the M badge, rims and tires.
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      04-04-2008, 10:33 AM   #14
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man, please tell me that not an m3 badge you have on the car.
+1
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      04-04-2008, 11:03 AM   #15
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+1
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      04-07-2008, 02:23 AM   #16
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Back to the original question, "Is 30 all the same in all tires brand".
Yes it is always the same but it does not mean 30mm or any other fixed size. It is the aspect ratio. So its height depends on the width of the tire.

265 is the width in milimeters, 35 is the aspect ratio and 18 is the wheel diameter in inches without the tire.
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      04-07-2008, 02:30 AM   #17
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Sorry, here is the math for Aspect Ratios of Tires

Aspect Ratio of a 275/30/19 is an 82.5mm tall sidewall

26mm equals an inch so you are correct, it will be about 3.05 inches.



Aspect Ratio of a 255/35/18 stock wheels is an 89.2mm tall sidewall

26mm equals an inch so you are correct, it will be about 3.43 inches.
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      04-07-2008, 02:56 PM   #18
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Quote:
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Off with the M badge, rims and tires.
I really like your stock looking car too....
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      04-07-2008, 02:58 PM   #19
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Quote:
Originally Posted by Yukon Dave View Post
Sorry, here is the math for Aspect Ratios of Tires

Aspect Ratio of a 275/30/19 is an 82.5mm tall sidewall

26mm equals an inch so you are correct, it will be about 3.05 inches.



Aspect Ratio of a 255/35/18 stock wheels is an 89.2mm tall sidewall

26mm equals an inch so you are correct, it will be about 3.43 inches.
This is a great answer.... Can you post the formula ???

Thanks
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      04-08-2008, 07:47 AM   #20
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all it is is the width (275 etc... in mm) times the aspect ratio as a % (.30)
so for 275/30, equation:

275mm * 0.30 = 82.5mm = 3.25 inches
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      04-08-2008, 08:13 AM   #21
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Quote:
Originally Posted by anerbe View Post
all it is is the width (275 etc... in mm) times the aspect ratio as a % (.30)
so for 275/30, equation:

275mm * 0.30 = 82.5mm = 3.25 inches

Great info....thanks
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      04-08-2008, 08:19 AM   #22
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Front Tires 4 fingers on mine

You think that 3 fingers is a lot..... I have an 08 335XI with the sp and the 17" All season RFT and I can basically put my entire hand in between the top of the tire and the fender well.

I was going to buy a 19" Wheel and Tire pck. but I just got laid off so thats on hold.
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