2007 z4 coupe 3.0si , non m. Tire size help

G1HQ · 03-15-2010, 04:59 PM

Hello All..

Im the new owner of a 2007 z4 coupe it has sport package an im looking to get out of the run flats next month. Looking into the EAS CSL Style rim in 18"
sizes are 18x8.5 +40mm front and 18x9.5 +45 rear. they recommend the tire size of 235/40/-18 front and 255/35-18. i like to know whats the largest size tire i can fit with out any issues. Im going with Dunlop Direzza Sport Z1, just had them on my last car a 135i it was a night an day difference. i recommend them to everyone.
Thank you for reading an looking forward to all your information..

Thank you
Gabor.

3002 tii · 03-15-2010, 05:31 PM

i could be wrong but i feel like the vendors give you the standard e9x fitment b/c i was given the same suggestion and ended up rubbing w/ 235s on full lock. eventually ended up wearing down some of the liner by the sidemarkers on both sides. i was running et 37 though...

G1HQ · 03-15-2010, 10:32 PM

Dub...
Thanks for the info.
Gabor

JD3 · 04-19-2010, 12:05 PM

Is it a problem to run 4 non-RFTs on the factory wheels. This is my first experience with TPMS and RFTs so I apologize if it's a silly question. Also, will BMW try to pull any crazy warranty stuff by using non-runflat tires? Thanks!

03-15-2010, 04:59 PM	#1
G1HQ New Member 2 Rep 21 Posts Drives: z4 3.0si coupe Join Date: May 2009 Location: Nj iTrader: (0)	2007 z4 coupe 3.0si , non m. Tire size help Hello All.. Im the new owner of a 2007 z4 coupe it has sport package an im looking to get out of the run flats next month. Looking into the EAS CSL Style rim in 18" sizes are 18x8.5 +40mm front and 18x9.5 +45 rear. they recommend the tire size of 235/40/-18 front and 255/35-18. i like to know whats the largest size tire i can fit with out any issues. Im going with Dunlop Direzza Sport Z1, just had them on my last car a 135i it was a night an day difference. i recommend them to everyone. Thank you for reading an looking forward to all your information.. Thank you Gabor. __________________ 2007 Z4 3.0si coupe
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03-15-2010, 05:31 PM	#2
3002 tii Lieutenant General 2279 Rep 12,565 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (99) Garage List F15 X5 xDrive35i [8.75] E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.50] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [9.20]	i could be wrong but i feel like the vendors give you the standard e9x fitment b/c i was given the same suggestion and ended up rubbing w/ 235s on full lock. eventually ended up wearing down some of the liner by the sidemarkers on both sides. i was running et 37 though... __________________ Follow for latest mods
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03-15-2010, 10:32 PM	#3
G1HQ New Member 2 Rep 21 Posts Drives: z4 3.0si coupe Join Date: May 2009 Location: Nj iTrader: (0)	Dub... Thanks for the info. Gabor __________________ 2007 Z4 3.0si coupe
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04-19-2010, 12:05 PM	#4
JD3 Major 193 Rep 1,229 Posts Drives: 09 e92 M3, DCT. Join Date: Apr 2010 Location: Columbus, OH iTrader: (3)	Is it a problem to run 4 non-RFTs on the factory wheels. This is my first experience with TPMS and RFTs so I apologize if it's a silly question. Also, will BMW try to pull any crazy warranty stuff by using non-runflat tires? Thanks!
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