Rear Tire Pressure

Fraggy · 01-06-2010, 11:38 AM

Why do so many prefer to have higher PSI in the rear tires? Is it the rear wheel drive, or is it just the correct way to go.

I figure this fits more in the suspension category than in the tire section as we are talking about the balance and handling of the car. I have seen some posters refer to the action of the tire as being another spring in the suspension.

mike-y · 01-06-2010, 12:22 PM

higher tire pressures can stiffen up the tire, making it feel more stable/predictable under cornering loads (less side wall flex) and adding a bit of cornering grip.

but weather or not the pressures are higher in the rear than the front will depend on tire size, balance/weight distribution, and suspension settings.

01-06-2010, 11:38 AM	#1
Fraggy Brigadier General 193 Rep 3,469 Posts Drives: 2016 M3 Join Date: Jun 2005 Location: San Diego iTrader: (11)	Rear Tire Pressure Why do so many prefer to have higher PSI in the rear tires? Is it the rear wheel drive, or is it just the correct way to go. I figure this fits more in the suspension category than in the tire section as we are talking about the balance and handling of the car. I have seen some posters refer to the action of the tire as being another spring in the suspension. __________________ 2016 Alpine White M3 (gone) 2019 Alfa Romeo Guilia (Totaled) 2020 Car-less 😁 (no more) 2020 M340
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01-06-2010, 12:22 PM	#2
mike-y just another bmw douche bag 195 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	higher tire pressures can stiffen up the tire, making it feel more stable/predictable under cornering loads (less side wall flex) and adding a bit of cornering grip. but weather or not the pressures are higher in the rear than the front will depend on tire size, balance/weight distribution, and suspension settings.
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