Tire Pressure for 21" wheels

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Feb 7, 2010 | 02:18 AM

RobertM

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mercedes 2011 CLS550 with AMG package

Tire Pressure for 21" wheels

Need suggestions on Tire Pressure for the following:

s500
HRE 943R
21x9 and 21x10.5
255/30 & 285/30
Pirelli P zero nero tires

thanks

Feb 7, 2010 | 08:43 PM

sunny_j

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Joined: May 2009

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From: Vancouver British Columbia

09 E320 Bluetec

38psi front
40psi rear

Feb 12, 2010 | 01:44 AM

Merked E320

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Joined: Apr 2007

Posts: 73

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From: Monterey, CA

2004 E320

Quote:

Originally Posted by sunny_j

38psi front
40psi rear

What is the reasoning behind the high PSI?

Feb 12, 2010 | 05:06 PM

Mka77

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Joined: Jun 2009

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From: Witness Protection Program

06 CLK350 -SOLD! 2010 Cadillac SRX Premium Turbo

Quote:

Originally Posted by sunny_j

38psi front
40psi rear

I run these pressures on a non - MB with 20" same size tires dimensions you have. Mike

Feb 14, 2010 | 09:57 PM

sunny_j

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Joined: May 2009

Posts: 519

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From: Vancouver British Columbia

09 E320 Bluetec

Quote:

Originally Posted by Merked E320

What is the reasoning behind the high PSI?

firmer ride and less chance of bending rims

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