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Tire Pressure with Aftermarket Wheels

Old Jan 17, 2007 | 01:29 PM
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Just fitted new 20" wheels on my car and want to know what pressure everyone is running on their tires with aftermarket wheels. Tire sizes are as follows: Front: 255/30/20 and Rear: 295/25/20. Many thanks.
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Old Jan 17, 2007 | 02:39 PM
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Wow....11" in the rear? That must look awesome!!!! Would love to see some pictures.

I run 35 psi on all four corners. What did your wheel/tire dealer recommend? You really have to watch them though. 20's have such a low aspect ratio (short sidewall) it's hard to tell if they are low on air or not. Hopefully that tire pressure system is working!!!
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Old Jan 17, 2007 | 02:59 PM
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Originally Posted by Heloha' post='379785' date='Jan 17 2007, 07:39 PM
Wow....11" in the rear? That must look awesome!!!! Would love to see some pictures.

I run 35 psi on all four corners. What did your wheel/tire dealer recommend? You really have to watch them though. 20's have such a low aspect ratio (short sidewall) it's hard to tell if they are low on air or not. Hopefully that tire pressure system is working!!!
Same here.. i ran 35 psi for my 20's.
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Old Jan 17, 2007 | 03:43 PM
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thanks. i am currently running 40 lbs on all four corners. will probably reduce down to 35lbs this weekend. will try and post some pictures up as well.
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Old Jan 17, 2007 | 05:44 PM
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Originally Posted by RoBD305' post='379840' date='Jan 17 2007, 04:43 PM
thanks. i am currently running 40 lbs on all four corners. will probably reduce down to 35lbs this weekend. will try and post some pictures up as well.
we will be waiting
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Old Jan 17, 2007 | 09:25 PM
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Yep, eager to see the pics as well. I've been comtemplating upgrading to an M5 and if so, I might consider doing what you did, white with white wheels.....
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Old Jan 17, 2007 | 11:44 PM
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41-43 psi the tires a numb lol
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Old Jan 17, 2007 | 11:47 PM
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35psi all around.
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Old Mar 11, 2010 | 11:57 AM
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hi everyone! just ordered similar size front: 255/30/20 and Rear: 295/25/20 new wheels/tyres.
most people seem to have 35PSI all round, but on standard wheels the pressures are always DIFFERENT for rears and fronts, should i keep the pressure on front and rears different on aftermarket wheels/tyres too?
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Old Mar 11, 2010 | 12:00 PM
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There should be maximum tire pressures on the tires that you buy for the wheels, so that can give you a better idea. 35PSI seems to be the normal pressure for 5 series though.
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