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[jcrabtree19]

Does any one have any experience with falken 452 tires? I just bought a set of advan rs-d 20x9 +17 and 20x10.5 +25. What size tires should i run with no drop that will cause no rubbing???

[Victory Road]

http://www.m3post.com/forums/showthread.php?t=288322

F:245/30/20 R:275/30/20

Nice choice in wheels!

[808E90]

Here is what I'm running ... I got some rub at full turn in front

20x9.0 et 17
20x10.5 et 25

245 35 20 Nitto INVO
285 30 20 Nitto INVO

[Lemans_Blue_M]

Originally Posted by 808E90

Here is what I'm running ... I got some rub at full turn in front

20x9.0 et 17
20x10.5 et 25

245 35 20 Nitto INVO
285 30 20 Nitto INVO

FYI: You rubbed, because the rolling diameter of the front tires you have now are nearly 27". (which is way too tall)

The rolling diameter of your front tire should be in the 25.8"-26.3" range.

Therefore, a 245/30/20 tire would resolve that rubbing issue for you.

Who recommended those incorrect tire sizes to you anyway?

BTW: Those rear tire sizes are wrong as well. And it doesn't matter whether they rub or not. They are not spec'd within the margin of error for this car.

[808E90]

Originally Posted by Lemans_Blue_M

FYI: You rubbed, because the rolling diameter of the front tires you have now are nearly 27". (which is way too tall)

The rolling diameter of your front tire should be in the 25.8"-26.3" range.

Therefore, a 245/30/20 tire would resolve that rubbing issue for you.

Who recommended those incorrect tire sizes to you anyway?

BTW: Those rear tire sizes are wrong as well. And it doesn't matter whether they rub or not. They are not spec'd within the margin of error for this car.

Thanks for the info ... I went with this size cause I wanted the sidewalls to be thick as possible (bad roads)

Would a 245/30/20 make the diameter of the front 0.7 shorter compared to a 35 series tire?

[Lemans_Blue_M]

Originally Posted by 808E90

Thanks for the info ... I went with this size cause I wanted the sidewalls to be thick as possible (bad roads)

Would a 245/30/20 make the diameter of the front 0.7 shorter compared to a 35 series tire?

Actually, a 245/30/20 has a 1" smaller overall diameter than the tires you have now...and that's the exact OE spec for the front tires on the E9x M3.

I know what you were trying to do, but some decisions can backfire if you get carried away. While the intent was to get more protection against bad roads, the result was rubbing due to the excessive tire sidewall height.

The 245/30/20 tire size is the same as stock (which is plenty), and there will be no unintended consequences like rubbing.

[808E90]

Originally Posted by Lemans_Blue_M

Actually, a 245/30/20 has a 1" smaller overall diameter than the tires you have now...and that's the exact OE spec for the front tires on the E9x M3.

I know what you were trying to do, but some decisions can backfire if you get carried away. While the intent was to get more protection against bad roads, the result was rubbing due to the excessive tire sidewall height.

The 245/30/20 tire size is the same as stock (which is plenty), and there will be no unintended consequences like rubbing.

Thank you for all the info ...

[jcrabtree19]

yeah thanks im gonna go with the 245x30x20 and 285x30x20. These should be the ones the fit. shoots thanks yeah

[Ryan@IND]

thanks Le Mans for the great info!
Although, we stray away from the stock overall diameter sometimes, for aftermarket wheels, due to wider wheels, or even lack of sizing from certain tire manufacturers, we always try to stay within the certain boundaries in order to keep true to the the dyanmics of the original car.

[MrHarris]

One profile size down 35-->30 when going from 19"--> 20".