Run-Flat replacement

MonteCarloX5///M · 07-02-2013, 10:10 AM

Hi Guys,

I currently have the run-craps on my car from factory, 275-40R20 and 315-35R20. I want to replace them with a decent summer tire, however I don't want to run into any speedometer issues with changing the OD of the tires. What brand and model, as well as sizing, have you guys run front and rear that have worked well?

Sedan_Clan · 07-02-2013, 01:59 PM

Changing tires won't really affect your speedometer readings. It's massive changes in wheel size that will/may do that, and even then it's not by much (...at least not enough to really be concerned about).

isugoo · 07-02-2013, 02:10 PM

Dunlop seems decent but pretty price.
Matt from Smoking tire ran Dunlop for his one lap of America with an X5M.
http://www.thesmokingtire.com/2012/b...erica-a-novel/

I'm thinking about going with:
Vredestein Ultrac Sessanta SUV. They make OEM sizes (275/40/20, 315/35/20)
Which is pretty popular tires on M3 side (non SUV version) and Camero/Charger etc. of new muscle car guys like this tires (this SUV versions since their rides are pretty heavy).

http://www.ebay.com/itm/350789656426...84.m1423.l2649

07-02-2013, 10:10 AM	#1
MonteCarloX5///M Private 7 Rep 69 Posts Drives: 2013 Monte Carlo Blue X5M Join Date: Jun 2013 Location: . iTrader: (0)	Run-Flat replacement Hi Guys, I currently have the run-craps on my car from factory, 275-40R20 and 315-35R20. I want to replace them with a decent summer tire, however I don't want to run into any speedometer issues with changing the OD of the tires. What brand and model, as well as sizing, have you guys run front and rear that have worked well?
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07-02-2013, 01:59 PM	#2
Sedan_Clan Law Enforcer 25017 Rep 22,269 Posts Drives: '22 Chalk Gray Porsche C2S Join Date: Jun 2006 Location: ..in your rearview!!! iTrader: (26)	Changing tires won't really affect your speedometer readings. It's massive changes in wheel size that will/may do that, and even then it's not by much (...at least not enough to really be concerned about).
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07-02-2013, 02:10 PM	#3
isugoo Major General 247 Rep 6,125 Posts Drives: 991.2 GTS Join Date: Feb 2008 Location: Irvine, CA iTrader: (73)	Dunlop seems decent but pretty price. Matt from Smoking tire ran Dunlop for his one lap of America with an X5M. http://www.thesmokingtire.com/2012/b...erica-a-novel/ I'm thinking about going with: Vredestein Ultrac Sessanta SUV. They make OEM sizes (275/40/20, 315/35/20) Which is pretty popular tires on M3 side (non SUV version) and Camero/Charger etc. of new muscle car guys like this tires (this SUV versions since their rides are pretty heavy). http://www.ebay.com/itm/350789656426...84.m1423.l2649 __________________ PAST: F80 M3 ZCP \| 911.1 C2S \| F10 M5 ZCP \| E70 X5M \| E90 M3 \| E46 M3 \| E36 M3
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