Those who have changed to 225/255 tires, what pressures are you running?

M3_Dust · 01-07-2010, 01:33 PM

I just ditched my runflats for some 225/40/18 and 255/35/18 non-runflats, the manufacturer says 50psi is the maximum inflation, the shop where I had the tires mounted recommends that I run ~45psi (which I think is way too high) to get maximum treadlife. I was running 37f/39r on my stock tires, I'm thinking 38-39f and 40-42r on the new tires, curious what you guys are running.

BrokenVert · 01-07-2010, 01:35 PM

I run 38/40 on my PS2s. They have tread after 18K miles, so I guess I did something right.

Gary@TireRack · 01-07-2010, 02:07 PM

36 front and rear

Mutilator · 01-07-2010, 02:07 PM

Door says to run 36/38... so I run 36/38.

VMRWheels · 01-07-2010, 03:42 PM

Anything between 36-40 PSI should work fine. I would recommend playing around with the pressures to see your personal likings and handling of the car. Do keep in mind, tire pressures raise about 2-3 PSI during normal driving conditions.

-Charles@VMRWheels

BMW86 · 01-07-2010, 05:10 PM

Quote:

Originally Posted by Gill@Tirerack.com

36 front and rear

This is what the tire shop filled mine at and said was recommended.

Luvmybmw · 01-08-2010, 11:02 AM

Quote:

Originally Posted by Gill@Tirerack.com

36 front and rear

+1

SlickShift · 01-08-2010, 08:12 PM

Quote:

Originally Posted by Gill@Tirerack.com

36 front and rear

That's exactly what I run mine at.

I find it a good mix between responsiveness and ride comfort.

01-07-2010, 01:33 PM	#1
M3_Dust Michelin Man 387 Rep 740 Posts Drives: F10 535i M Sport Join Date: Apr 2008 Location: on forums iTrader: (0)	Those who have changed to 225/255 tires, what pressures are you running? I just ditched my runflats for some 225/40/18 and 255/35/18 non-runflats, the manufacturer says 50psi is the maximum inflation, the shop where I had the tires mounted recommends that I run ~45psi (which I think is way too high) to get maximum treadlife. I was running 37f/39r on my stock tires, I'm thinking 38-39f and 40-42r on the new tires, curious what you guys are running.
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01-07-2010, 01:35 PM	#2
BrokenVert Resident Kerbalnaut 477 Rep 10,703 Posts Drives: Topless Brute/Hybrid Boogaloo Join Date: Apr 2009 Location: Fahrvergnügen/NY iTrader: (0)	I run 38/40 on my PS2s. They have tread after 18K miles, so I guess I did something right. __________________
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01-07-2010, 02:07 PM	#3
Gary@TireRack Moderator 369 Rep 4,745 Posts Drives: Formerly 1995 M3 Join Date: Oct 2006 Location: South Bend, IN, Tire Rack HQ iTrader: (2)	36 front and rear __________________ Gary. Tire and Wheel Forum Moderator. Tire Rack Sales Rep Gary@Tirerack.com http://www.tirerack.com/a.jsp?a=AH8&url=index.jsp Please refer to 'Gary/E90 Post' as your previous contact when you order online to help support this forum.
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01-07-2010, 02:07 PM	#4
Mutilator Private First Class 4 Rep 130 Posts Drives: 09 AW 135i Join Date: Nov 2008 Location: NC iTrader: (0)	Door says to run 36/38... so I run 36/38.
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01-07-2010, 03:42 PM	#5
VMRWheels General 2038 Rep 25,989 Posts Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA iTrader: (4) Garage List 2013 BMW M3 [10.00] 2015 BMW M4 [0.00] 2013 BMW F30 [0.00] 2014 BMW F22 [0.00] 2013 BMW F06 [0.00]	Anything between 36-40 PSI should work fine. I would recommend playing around with the pressures to see your personal likings and handling of the car. Do keep in mind, tire pressures raise about 2-3 PSI during normal driving conditions. -Charles@VMRWheels __________________ VMR\|Wheels \| 714.442.7916 \| sales@velocitymotoring.com \| www.velocitymotoring.com \| facebook \| flickr \| Instagram
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