Can stock RFTs be used as a spare?

arc1880 · 09-24-2010, 12:15 PM

I'm currently running with the following setup with KW Variant 2:

19x8.5F ET40 (5mm spacers)
19x9.5R ET33

235/35/19F
265/30/19R

I still have my stock 18' with run flats sitting in my garage. Has anyone used the stock 18's with run flats as a spare? Can it be done?

R1000K3 · 09-24-2010, 12:32 PM

That would be the BEST use of RFT's since they are more or less worthless for normal driving.

arc1880 · 09-24-2010, 12:37 PM

I just want to confirm if anyone has done this. I still have the stock Potenza tires on them. Are those tires asymmetrical? Perhaps a Tire Rack rep in here can confirm?

SpmnE9zero · 09-24-2010, 12:41 PM

Quote:

Originally Posted by arc1880

I just want to confirm if anyone has done this. I still have the stock Potenza tires on them. Are those tires asymmetrical? Perhaps a Tire Rack rep in here can confirm?

It would be far closer than a donut spare. I have heard of many doing this, not myself, so wait til someone else chimes in, but I think you are fine using it as a spare.

arc1880 · 09-24-2010, 03:49 PM

Ok, so according to Tire Rack the Potenza RE050A RFTs do have an asymmetric tread pattern. I was looking at my tires last night and I did notice that the tread wasn't specifically directed in a particular direction compared to my Hankook V12s. So now I'm hoping someone can chime in to help confirm this.

arc1880 · 09-24-2010, 10:35 PM

Anyone?

deanmc · 09-24-2010, 11:12 PM

I have 19" wheels and I use my front 17" style 161 as a spare on longer road trips. You should have no problems as long as the rolling diameters of the 18" and 19" wheel + tire are within a few % of each other.

09-24-2010, 12:15 PM	#1
arc1880 Second Lieutenant 13 Rep 258 Posts Drives: '07 335i (e92) Join Date: Jun 2010 Location: San Diego, CA iTrader: (1)	Can stock RFTs be used as a spare? I'm currently running with the following setup with KW Variant 2: 19x8.5F ET40 (5mm spacers) 19x9.5R ET33 235/35/19F 265/30/19R I still have my stock 18' with run flats sitting in my garage. Has anyone used the stock 18's with run flats as a spare? Can it be done?
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09-24-2010, 12:32 PM	#2
R1000K3 Major 56 Rep 1,311 Posts Drives: 335i MT Join Date: Jul 2009 Location: USA iTrader: (0)	That would be the BEST use of RFT's since they are more or less worthless for normal driving.
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09-24-2010, 12:37 PM	#3
arc1880 Second Lieutenant 13 Rep 258 Posts Drives: '07 335i (e92) Join Date: Jun 2010 Location: San Diego, CA iTrader: (1)	I just want to confirm if anyone has done this. I still have the stock Potenza tires on them. Are those tires asymmetrical? Perhaps a Tire Rack rep in here can confirm?
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09-24-2010, 03:49 PM	#5
arc1880 Second Lieutenant 13 Rep 258 Posts Drives: '07 335i (e92) Join Date: Jun 2010 Location: San Diego, CA iTrader: (1)	Ok, so according to Tire Rack the Potenza RE050A RFTs do have an asymmetric tread pattern. I was looking at my tires last night and I did notice that the tread wasn't specifically directed in a particular direction compared to my Hankook V12s. So now I'm hoping someone can chime in to help confirm this.
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09-24-2010, 10:35 PM	#6
arc1880 Second Lieutenant 13 Rep 258 Posts Drives: '07 335i (e92) Join Date: Jun 2010 Location: San Diego, CA iTrader: (1)	Anyone?
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09-24-2010, 11:12 PM	#7
deanmc Captain 64 Rep 878 Posts Drives: 2006 325i Join Date: Jun 2009 Location: Orange County, CA iTrader: (15) Garage List 2006 325i [10.00]	I have 19" wheels and I use my front 17" style 161 as a spare on longer road trips. You should have no problems as long as the rolling diameters of the 18" and 19" wheel + tire are within a few % of each other. __________________
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