Mixing standard with run flats

TurboLove · 10-18-2018, 03:18 PM

So I read from one member that you shouldn't run 2 standard tires and 2 run flats I was wondering why? and if so I was trying to run 2 standard up front and 2 run flats in the back only because I can get the run flats in the size I want in the perfect fitment but if it's not good for driving then I'll just wait please guys let me know cause I have some one selling 275/35r19 for $150 2 tires

wdeerfield · 10-22-2018, 08:11 PM

not good for mixing at all. run flats have a stiffer sidewall and construction. it would very much upset the handling of the car. sometimes saving a few bucks isn't worth it.

cfm56d7b · 10-22-2018, 11:41 PM

I advise not to even consider it for safety reasons and reasons mentioned by wdeerfield . Standard tires in the front with softer sidewalls will most likely induce oversteer and almost every modern vehicle has slight understeer (less opportunities for the driver to place themselves in danger).

10-18-2018, 03:18 PM	#1
TurboLove Private 38 Rep 91 Posts Drives: White 14' F32 Join Date: Oct 2018 Location: San Diego,CA iTrader: (0) Garage List 2014 BMW 428i [0.00]	Mixing standard with run flats So I read from one member that you shouldn't run 2 standard tires and 2 run flats I was wondering why? and if so I was trying to run 2 standard up front and 2 run flats in the back only because I can get the run flats in the size I want in the perfect fitment but if it's not good for driving then I'll just wait please guys let me know cause I have some one selling 275/35r19 for $150 2 tires
	Appreciate 0 Tweet Quote

10-22-2018, 08:11 PM	#2
wdeerfield A family of bimmers 2745 Rep 7,741 Posts Drives: '18 G01 X3M40i Join Date: Jan 2012 Location: Clifton Park, NY iTrader: (0)	not good for mixing at all. run flats have a stiffer sidewall and construction. it would very much upset the handling of the car. sometimes saving a few bucks isn't worth it. __________________ 2018 PB/Black G01 X3M40i \| 699M \| ZDA \| ZPP \| ZPX \| Maxton front lip \| X3M vents \| 15mm Spacers \| Diamond G20 style grills
	Appreciate 0 Quote

10-22-2018, 11:41 PM	#3
cfm56d7b Lieutenant General 5884 Rep 10,256 Posts Drives: 2017 440i Gran Coupe & 2015 X5 Join Date: Nov 2012 Location: Orange County, CA iTrader: (2)	I advise not to even consider it for safety reasons and reasons mentioned by wdeerfield . Standard tires in the front with softer sidewalls will most likely induce oversteer and almost every modern vehicle has slight understeer (less opportunities for the driver to place themselves in danger).
	Appreciate 1 wdeerfield2745.00 Quote