S55 AMG, S65 AMG , S63 AMG (W220, W221) 2001 - 2013 (Two Generations)

Tires

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Old 12-28-2003, 02:41 PM
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2003 S55
Tires

Curious..........................

Does anyone know the rational for Mercedes putting a lower profile tire on the rear of my S55 than on the front.

Rears are 265-40-18
Fronts are 245-45-18..
Old 12-28-2003, 09:44 PM
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very comment on most european high performance car like MB, BMW, Porsche.

i have even bigger difference for 235/40/18 Front & 295/30/18 Rear
Old 12-29-2003, 11:03 AM
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2003 S55
Originally posted by 20C4S
very comment on most european high performance car like MB, BMW, Porsche.

i have even bigger difference for 235/40/18 Front & 295/30/18 Rear
The question remains, why? What's the benefit of that set up versus equal size tires or even a reversal of that set up?
Old 12-29-2003, 01:27 PM
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Since the rear tires are wider, they have to be lower profile in order to maintain the same diameter as the front tires.
Old 12-29-2003, 01:34 PM
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Like sillydriver said.

The profile is stated as a ratio (percentage) of section width. Once you calculate it, you can see they are 106 and 110 MM respectively. The varience is small enough that the various computers don't mind the rotational difference
Old 12-29-2003, 05:30 PM
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2003 S55
Originally posted by E55AMG99
Like sillydriver said.

The profile is stated as a ratio (percentage) of section width. Once you calculate it, you can see they are 106 and 110 MM respectively. The varience is small enough that the various computers don't mind the rotational difference
Got it..

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