For those that got rid of RFT's, what......

SCBMW02 · 03-06-2011, 05:59 PM

tire pressures are you running? I am getting Continental DWs in 235 35-19 front and 275 30-19 rear. Thanks

Mr. ///M3 RD · 03-06-2011, 06:07 PM

Quote:

Originally Posted by SCBMW02

tire pressures are you running? I am getting Continental DWs in 235 35-19 front and 275 30-19 rear. Thanks

I think your rear tires are too big, they may rub on you. I think they should be 265/30/19 max. Post in the TireRack forum someone I am sure will confirm my thoughts on this.

As for tire pressure there sre simple formulas based on weight of your car. I recommend you google "Tire Pressure" and you can read all about it.

Cheers,

Rolf-Dieter

rmorin49 · 03-06-2011, 06:11 PM

I run 36 psi all around except on road trips where I increase the rear pressure to 40 psi to account for luggage in the boot.

marcw · 03-06-2011, 07:32 PM

Quote:

Originally Posted by Rolf-Dieter

I think your rear tires are too big, they may rub on you. I think they should be 265/30/19 max.

Not true. I'm running 275/30/19 Conti DWS in the rear. No rubbing at all. There is somebody on the board that is running 285 w/o issues. As a matter of fact if you have 296 style wheels I would recommend 275/30 over 265 as it gives you a taller sidewall. You will loose some of the ultra low profile look, but it was worth it to me to give my 296 wheels a little extra cushion. Replacing bend wheels is expensive. I'm running standard air pressure 36 front 42 rear. I've been running with this setup for 6 months/2500 miles now. No problems at all. Much better than stock RFT.

You can check different tire sizes and their impact here http://www.1010tires.com/TireSizeCalculator.asp. Sidewall height on stock is 3.01 in (76.454 mm) vs 3.24 in (82.296 mm) on 275.

-Marc

Mr. ///M3 RD · 03-07-2011, 06:10 AM

Quote:

Originally Posted by marcw

Not true. I'm running 275/30/19 Conti DWS in the rear. No rubbing at all. There is somebody on the board that is running 285 w/o issues. As a matter of fact if you have 296 style wheels I would recommend 275/30 over 265 as it gives you a taller sidewall. You will loose some of the ultra low profile look, but it was worth it to me to give my 296 wheels a little extra cushion. Replacing bend wheels is expensive. I'm running standard air pressure 36 front 42 rear. I've been running with this setup for 6 months/2500 miles now. No problems at all. Much better than stock RFT.

You can check different tire sizes and their impact here http://www.1010tires.com/TireSizeCalculator.asp. Sidewall height on stock is 3.01 in (76.454 mm) vs 3.24 in (82.296 mm) on 275.

-Marc

Thanks Marc, I stand to be corrected. My reply was based upon what I read in several posts in the TireRack forum. Goes to show one that not all is true

Thanks again for the heads up it will help those that are running the 296.

Cheers,

Rolf-Dieter

SCBMW02 · 03-07-2011, 08:20 AM

thanks for the info, i thought i could go 275 with the 19's. can't wait to ditch the FFT's!

silverstone_ttlz4 · 02-18-2012, 05:38 PM

I just swapped out the stock RFTs for Michelin Pilot Sport A/S Plus tires (F: 235/30/19; R: 275/30/19). My first impression was that not much had changed, but then it became apart to me that the ride was quieter, less jarring over uneven pavement, and just all around tighter.

I was worried about the rear tires not fitting and the MB dealer I brought my car to to get the tires mounted were also hesitant to mount them, but there doesn't seem to be any issues with this setup as other members have stated.

03-06-2011, 05:59 PM	#1
SCBMW02 Second Lieutenant 125 Rep 237 Posts Drives: 2019 X5 40i and 2022 Z4 M40i Join Date: Feb 2008 Location: Florence,South Carolina iTrader: (0) Garage List 2022 BMW Z4 M40i [0.00] 2019 BMW X5 40i [0.00]	For those that got rid of RFT's, what...... tire pressures are you running? I am getting Continental DWs in 235 35-19 front and 275 30-19 rear. Thanks
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03-06-2011, 06:11 PM	#3
rmorin49 Major 53 Rep 1,162 Posts Drives: 11 335d/10 Z4 s30i Join Date: Nov 2006 Location: Hagerstown, MD iTrader: (1)	I run 36 psi all around except on road trips where I increase the rear pressure to 40 psi to account for luggage in the boot. __________________ Colonel (Retired), US Army/Hagerstown, MD 2016 518ixdrive/MSport AW/Ivory White ED-01-10 2010 Z4s30i AW/Beige/Burl/ 6MT/SP/PP/CWP/NAV/ipod/USB/CA (retired) 2011 335d BS/Oyster/PP/CWP/NAV/ipod/USB(Daily Driver) 30+ mpg(retired)
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03-07-2011, 08:20 AM	#6
SCBMW02 Second Lieutenant 125 Rep 237 Posts Drives: 2019 X5 40i and 2022 Z4 M40i Join Date: Feb 2008 Location: Florence,South Carolina iTrader: (0) Garage List 2022 BMW Z4 M40i [0.00] 2019 BMW X5 40i [0.00]	thanks for the info, i thought i could go 275 with the 19's. can't wait to ditch the FFT's!
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02-18-2012, 05:38 PM	#7
silverstone_ttlz4 Private First Class 6 Rep 109 Posts Drives: 09 Z4 35i Join Date: Feb 2012 Location: Boston iTrader: (0)	I just swapped out the stock RFTs for Michelin Pilot Sport A/S Plus tires (F: 235/30/19; R: 275/30/19). My first impression was that not much had changed, but then it became apart to me that the ride was quieter, less jarring over uneven pavement, and just all around tighter. I was worried about the rear tires not fitting and the MB dealer I brought my car to to get the tires mounted were also hesitant to mount them, but there doesn't seem to be any issues with this setup as other members have stated.
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