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      03-20-2009, 09:57 AM   #1
CSanto
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Did anyone go to a 305 rear wheel?

I'm minutes away from ordering a set of wheels (19" P40s)

I'm wondering if I should stay with the 295 rear, or go to the 305...

Any thoughts?
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      03-20-2009, 12:37 PM   #2
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I was thinking 295 myself but not to sure if the will rub. will the 295 in the rear rub? What is the offset are you using? Any spacers?
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      03-20-2009, 12:38 PM   #3
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Thinking about 305/30R19 in the back as well but might end up running 285/35R19 instead.
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      03-20-2009, 02:45 PM   #4
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Ive seen a few people do a 305
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      03-20-2009, 03:03 PM   #5
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2008 BMW M3  [3.95]
I've seen many people with a 295 and 305.
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      03-25-2009, 10:24 PM   #6
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We did a set of HRE P40 19x10.5 et28 in the rear with Nitto Invo 305/30-19 which replaced Invo 285/30-19. It should be et33 as it rubs a little but the car is also very low. The cars we have done with the same series of wheels with the same offset but with Michelin Pilot Sport PS2 295/30-19 have no rubbing or fitment issues.
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      03-28-2009, 01:35 PM   #7
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315 works if you have the proper custom wheel.
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      03-28-2009, 01:54 PM   #8
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There is no point in running such a wide tire on this car in the rear unless you are doing it for bragging rights of running such a wide tire. The disparity between the front and rear tire size will cause the car to understeer much more and throw off the relatively neutral handling. Second, a 305 tire weighs a good 3-4 lbs more per tire than a 275 or 285, causing you to have an increase in rotational mass that will slow down the acceleration of the car. And finally, a 305 is typically a lot more expensive as well. Choose wisely...its not like the M3 has a lot of low end torque and need that wide a tire...
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      03-28-2009, 03:01 PM   #9
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Quote:
Originally Posted by PunjabiM3 View Post
There is no point in running such a wide tire on this car in the rear unless you are doing it for bragging rights of running such a wide tire. The disparity between the front and rear tire size will cause the car to understeer much more and throw off the relatively neutral handling. Second, a 305 tire weighs a good 3-4 lbs more per tire than a 275 or 285, causing you to have an increase in rotational mass that will slow down the acceleration of the car. And finally, a 305 is typically a lot more expensive as well. Choose wisely...its not like the M3 has a lot of low end torque and need that wide a tire...
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      03-28-2009, 06:16 PM   #10
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Quote:
Originally Posted by PunjabiM3 View Post
There is no point in running such a wide tire on this car in the rear unless you are doing it for bragging rights of running such a wide tire. The disparity between the front and rear tire size will cause the car to understeer much more and throw off the relatively neutral handling. Second, a 305 tire weighs a good 3-4 lbs more per tire than a 275 or 285, causing you to have an increase in rotational mass that will slow down the acceleration of the car. And finally, a 305 is typically a lot more expensive as well. Choose wisely...its not like the M3 has a lot of low end torque and need that wide a tire...
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      03-28-2009, 06:39 PM   #11
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Quote:
Originally Posted by PunjabiM3 View Post
There is no point in running such a wide tire on this car in the rear unless you are doing it for bragging rights of running such a wide tire. The disparity between the front and rear tire size will cause the car to understeer much more and throw off the relatively neutral handling. Second, a 305 tire weighs a good 3-4 lbs more per tire than a 275 or 285, causing you to have an increase in rotational mass that will slow down the acceleration of the car. And finally, a 305 is typically a lot more expensive as well. Choose wisely...its not like the M3 has a lot of low end torque and need that wide a tire...
Agreed!!!

That being said, i'm running a 325.25.20 on the rear

Yes its for bragging rights!!!
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      03-28-2009, 10:02 PM   #12
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Quote:
Originally Posted by volinder View Post
Agreed!!!

That being said, i'm running a 325.25.20 on the rear

Yes its for bragging rights!!!
On your SUV right, not your M3.
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      03-29-2009, 06:27 PM   #13
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Quote:
Originally Posted by King Tut View Post
On your SUV right, not your M3.
Nope on my m3
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      04-05-2009, 02:39 PM   #14
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but it looks badass
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      04-05-2009, 11:25 PM   #15
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but it looks badass
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      04-06-2009, 01:36 AM   #16
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but it looks badass
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      04-06-2009, 03:15 AM   #17
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Quote:
Originally Posted by volinder View Post
Agreed!!!

That being said, i'm running a 325.25.20 on the rear

Yes its for bragging rights!!!


I have 305's on my M3 and I thought that was wide. but 325/25ZR20 you will be the Man
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