What size tires for this car should I get?

Newff · 04-20-2011, 10:19 AM

Just bought a 2008 Z4 3.0SI with that has 18" BRIDGESTONE 225/40R18 runflats on all wheels. I'm defnitely getting new tires now but wondering what size is reccommeded? Different sizes for back than front?

Also on another Z4 forum th most popular tire is the Falken FK's but I don't see much about them here? What's your opinon of them? Also the Hankook V12's were mentioned to me.

Arxangel · 04-20-2011, 03:32 PM

The BMW recommended sizes for this model are 225/40 front and 255/35 back.
I would suggest you buy Michelin PS3 or PSS, they have much better grip, softer ride, tougher thread, and are quieter especially when compared to the Potenza (if I had to make a guess I would say it is RE050A) that you are running now.

Newff · 04-21-2011, 04:07 PM

What does the R or ZR mean? like sometimes it says 225/40ZR for example and sometimes just 225/40.

ZStig · 04-21-2011, 04:10 PM

R is the radius, Z is the speed rating

more info here
http://www.tirerack.com/tires/tirete....jsp?techid=35

Newff · 04-22-2011, 04:33 AM

Thanks!

04-20-2011, 10:19 AM	#1
Newff Private First Class 20 Rep 135 Posts Drives: 2008 BMW Z4 3.0si Join Date: Feb 2011 Location: Fort Mcmurray, Alberta/ Hare Bay, Newfoundland iTrader: (0)	What size tires for this car should I get? Just bought a 2008 Z4 3.0SI with that has 18" BRIDGESTONE 225/40R18 runflats on all wheels. I'm defnitely getting new tires now but wondering what size is reccommeded? Different sizes for back than front? Also on another Z4 forum th most popular tire is the Falken FK's but I don't see much about them here? What's your opinon of them? Also the Hankook V12's were mentioned to me.
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04-20-2011, 03:32 PM	#2
Arxangel Private First Class 16 Rep 176 Posts Drives: 2006 Z4 3.0si Coupe Join Date: Jan 2011 Location: Bulgaria iTrader: (0) Garage List 2006 Z4 3.0si [8.50]	The BMW recommended sizes for this model are 225/40 front and 255/35 back. I would suggest you buy Michelin PS3 or PSS, they have much better grip, softer ride, tougher thread, and are quieter especially when compared to the Potenza (if I had to make a guess I would say it is RE050A) that you are running now.
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04-21-2011, 04:07 PM	#3
Newff Private First Class 20 Rep 135 Posts Drives: 2008 BMW Z4 3.0si Join Date: Feb 2011 Location: Fort Mcmurray, Alberta/ Hare Bay, Newfoundland iTrader: (0)	What does the R or ZR mean? like sometimes it says 225/40ZR for example and sometimes just 225/40.
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04-21-2011, 04:10 PM	#4
ZStig instagram 997turbotom 279 Rep 7,377 Posts Drives: Interlagos Z4MR Join Date: Jun 2008 Location: Delray Beach, FL iTrader: (4)	R is the radius, Z is the speed rating more info here http://www.tirerack.com/tires/tirete....jsp?techid=35 __________________
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04-22-2011, 04:33 AM	#5
Newff Private First Class 20 Rep 135 Posts Drives: 2008 BMW Z4 3.0si Join Date: Feb 2011 Location: Fort Mcmurray, Alberta/ Hare Bay, Newfoundland iTrader: (0)	Thanks!
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