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

SL55/63/65/R230 AMG: Tire Sizing

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Old Jul 2, 2010 | 09:16 AM
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Tire Sizing

Looking to purchase 20x9 for the front and 20x10.5 for the rear. There seems to be some variation in what tires will fit these wheels. Can anyone tell me what the "best/optimal" tire size for these? Can anyone post pics of what different tires would like like on this size wheel?
Thanks,
D-
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Old Jul 2, 2010 | 09:36 AM
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Porsche guy who drives SL63 w/ perf pkg AND perf suspension
305/25 rear, 245/35 front
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Old Jul 2, 2010 | 10:19 AM
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Originally Posted by okbarnett
305/25 rear, 245/35 front
Close, but it's 245 or 255/30/20 up front, if you want to keep the same rolling diameter.
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Old Jul 2, 2010 | 11:24 AM
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From: Boston & Bonita Springs, Fl
2005 SL65 w/RENNtech Stage 2, 2013 MB GL550
I have 255/30/20 up front and 305/25/20 on the back wheels. Tires are Michelin and wheels are from RennTech.
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Old Jul 2, 2010 | 01:25 PM
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Any rubbing issues with the 255 - 305 combination?
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Old Jul 3, 2010 | 11:24 AM
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Anyone else got any thoughts on this?

Sounds like 255/30/20 up front and 305/25/20 on the back wheels is the best fit. Anyone else suggest going 19s on the front?
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Old Jul 4, 2010 | 11:52 AM
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SL 55 and a GT 3000 vr4 Here's my car: http://home.online.no/~ludvs/index.cfm
Tires

I also have 255/30 and 305/25 and having no problems. I got it lowered, so I need to have it raised a little bit (1 red dot), on the ****ty roads here in norway. 2 dots when embarking the ferry :-)
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Old Jul 4, 2010 | 02:32 PM
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How do the tires/wheels look with those sizes? I am not a big fan of the the "stretched" look with some tire sizes
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Old Jul 4, 2010 | 08:11 PM
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255 and 305 will certainly not give you a stretched look.

On the front, you will have a very 'square' look, neither bulging nor stretching. 255s and 9inch rims pretty much go hand in hand.

On the rear, you may even have a little bulging depending on the brand of tyre.

Perhaps an SL owner with the same specs you are after could post a pic for you..
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Old Jul 5, 2010 | 10:08 AM
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From: Boston & Bonita Springs, Fl
2005 SL65 w/RENNtech Stage 2, 2013 MB GL550
No rubbing issues at all.
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Old Jul 5, 2010 | 10:43 AM
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Cool thanks. Anyone got any tire suggestions? There do not seem to be a whole lot of high performance tires out there which are availble in both 255/30 and 305/25
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Old Jul 5, 2010 | 12:19 PM
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Originally Posted by SRQLAW
Cool thanks. Anyone got any tire suggestions? There do not seem to be a whole lot of high performance tires out there which are availble in both 255/30 and 305/25
I'm running the Continental ContiSportContact 3s, in that size. I'm able to cut 1.7x 60' times at the track consistently with them.
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Old Jul 5, 2010 | 12:31 PM
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How are these in the rain... since this remains the daily driver we get some mad-rain here in Florida...
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Old Jul 5, 2010 | 01:36 PM
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From: Boston & Bonita Springs, Fl
2005 SL65 w/RENNtech Stage 2, 2013 MB GL550
I'm running Michelin PS2 on my RennTech wheels. I have 20x9 in front and 20x10.5 in back. Fit fine and look good. I'll get some pics and post here shortly.
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Old Jul 5, 2010 | 03:32 PM
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Thanks!!!
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