SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: what size tires for 20" wheels

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Old Oct 23, 2007 | 05:21 PM
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cdsjklee's Avatar
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From: El Dorado Hills, California
2004 SL55 AMG EUROCHARGED. 2002 X5. 1999 SUBURBAN WHIPPLE SUPERCHARGER+MODs,04 M3 EUROCHARED
what size tires for 20" wheels

Hi I have lowenhart 20x9 and 20x11 what size tires are best for the 2004 SL55 amg I am thinking 245/30/20 for front 285/30/20 for rear. Any suggestions thanks Jason
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Old Oct 23, 2007 | 06:01 PM
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You name it i've had it or got it...
245 or 255-30-20 in the fronts and 305-25-20 rears
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Old Oct 23, 2007 | 06:52 PM
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285/30/20 Are too small for the 11's. you need at least 295/25/20 but rbtonnie5's recs are perfect.
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Old Oct 24, 2007 | 04:22 AM
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Originally Posted by erdocslx2
285/30/20 Are too small for the 11's. you need at least 295/25/20 but rbtonnie5's recs are perfect.
I agree.
My 285/25-20 are to thin.
At least 295/25-20 to get them as high as my 245/30-20 in front.

And strangly enough, there are some differencies between 285 and 285, depending on what brand the tire have...
I can't get that!
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Old Oct 24, 2007 | 04:51 AM
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2008 MB CL600. 2020 MB E300 de. 1987 BMW M535i.
Totally forgot to tell you the width of my rims. 9" front, and 10" rear.
And since you have 11", 305 sounds ideal.
But as I said, there are some differencies in width depending on tire brand...
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Old Oct 24, 2007 | 01:48 PM
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What tire pressure do you guys run? I have 20" RennTech's
with 295's on the rear. Tires are PSII's. Thanks.
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Old Oct 25, 2007 | 08:23 PM
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Originally Posted by rajah996
What tire pressure do you guys run? I have 20" RennTech's
with 295's on the rear. Tires are PSII's. Thanks.
i have 20x9 & 20x11 255's on frt & 305's rear, guy at tire shop said they should be at 51psi but im not sure
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Old Oct 26, 2007 | 09:45 AM
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Yeah a tireshop told me 46 and I thought that was a bit high.
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Old Oct 31, 2007 | 08:32 AM
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SL55AMG, ML420CDI, E320TCDI
[quote=cdsjklee;2468119]Hi I have lowenhart 20x9 and 20x11 what size tires are best for the 2004 SL55 amg I am thinking 245/30/20 for front 285/30/20 for rear. Any suggestions thanks Jason[/quote]

You can easily run 275 up front, and 305 rear. Those tires would match the rims perfectly.

The 275 gives a better grip, when cornering, and braking.

Its true that tires differ in actual with from brand to brand, i noticed that my self, so what i recomend is Conti Sport Contact 3. They have a smooth ride, good grip, and are not square when its cold.

They handle my 654 hp. very well.
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Old Oct 31, 2007 | 11:39 AM
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hey SLcharger, post some pics of your car
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Old Nov 1, 2007 | 09:47 AM
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SL55AMG, ML420CDI, E320TCDI
[quote=Fantasm;2480379]hey SLcharger, post some pics of your car [/quote]

Sure, just need to give it a wash.
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Old Nov 1, 2007 | 12:47 PM
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You name it i've had it or got it...
weird....you learn something new everyday. i wonder why no one else runs 275 up front and 255 has been the standard? your car doesn't rub because it is lowered?
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Old Nov 2, 2007 | 11:19 AM
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SL55AMG, ML420CDI, E320TCDI
[quote=rbtronnie5;2482303]weird....you learn something new everyday. i wonder why no one else runs 275 up front and 255 has been the standard? your car doesn't rub because it is lowered?[/quote]

Havent had any trouble yet. Have done more than 10K miles with that setup.

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