I concurr (archive)

In order for me to maintain correct wear on my AVS sports I must run a minimum of 45psig. I usually fill to 50 and refill when it drops to 45ish. These are 35 and 30 series 19" tires. If your an e36er the door specs work well with 18 and 19" tires but the weight of a 7 is quite higher than an e36.

Guy

If the pressure recommendations on the sticker is for the 235/60-16 stock tires, it won't necessarily be the same with 18" tires, as the volume of the tires may be different. Remember that it's the amount of air that counts, not the pressure, so it will differ among tires with different volumes.

Also, low-profile tires don't react the same way as "conventional" tires when pressure is increased. Conventional tires tend to bulge out on the middle if the pressure is too high, but low-profile tires tend to expand sideways, in effect keeping the tire flat.

Big-T

Seems like closer to the factory recommended tire pressures as per the sticker in the door jam would be better.

38 psi for the front is too much IMHO!

Won't the tires wear more in the centers, as the tires will not be flat across the tread area?

DHG

ANYONE HAVE AN OPINION ON TIRE PRESSURE?
DRIVER'S DOOR SAYS 33 FRNT AND 41 REAR.
I just went with 38 and 41, it feels a little stiff but I like it and seems to handle better.
I have 18 in. Michelin Pilot All Weather XGT Z4
99 740il

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