SLK55 (R171) 2004 - 2010: SLK200K, SLK280, SLK350, SLK55, SLK55 Black Series

Tire sizing...

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Old 07-17-2008, 10:08 AM
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2006 SLK55
Tire sizing...

Has anyone tried to run alternative rear sizes? Like 245/40/18 or 255/35/18? Any issues with either size?
Old 07-17-2008, 01:53 PM
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SLK55, Mustang 480hp, CBR600rr
Originally Posted by lsufan
Has anyone tried to run alternative rear sizes? Like 245/40/18 or 255/35/18? Any issues with either size?

I run 255/35/18 on stock rims in the rear.
Old 07-17-2008, 02:08 PM
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2006 SLK55
Any speedo issues or is it close enough in size?
Old 07-17-2008, 03:02 PM
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'10 Porsche Turbo PDK, 500e, GL450
size

265/35 18 and 265/30 19 in the rear.
Old 07-17-2008, 03:39 PM
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Originally Posted by Ppower
I run 255/35/18 on stock rims in the rear.
Is it still fit with the stock rims? Can you post some pics?
Old 07-17-2008, 05:22 PM
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Ok did some googling at 255/35 there is only about 1% reduction on the actual speedo, IE 60 is about 59...guess that means I'd have an excuse for a ticket? Has anyone tried the Nitto Invo's? The tread pattern is pretty radical and I've read good reviews on other forums.
Old 07-24-2008, 10:40 PM
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SLK55, Mustang 480hp, CBR600rr
Originally Posted by lsufan
Any speedo issues or is it close enough in size?
No speedo issues.
Old 07-24-2008, 10:41 PM
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SLK55, Mustang 480hp, CBR600rr
Originally Posted by lee7758
Is it still fit with the stock rims? Can you post some pics?

yes I can get some pics.
Old 07-25-2008, 12:36 AM
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I'm interested to see also, I'm sure I will need better rubber when the car is all Kleemann-ized.
Old 07-25-2008, 12:42 AM
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'10 Porsche Turbo PDK, 500e, GL450
better rubber

You not only will need the BEST rubber but wider rubber ... and it will still be laughably inadequate.
Old 07-25-2008, 12:45 AM
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I know. What size and brand do you recommend for both front and rear?
Old 07-25-2008, 01:18 AM
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'10 Porsche Turbo PDK, 500e, GL450
18s

give you a bit more choices.

so first is stick with 18 rims.

Fronts should be 235 and rears 265.

Brand would be Michelin Pilot Sport Cups. So far those have seemed to be the best in that specific size for the SLK55. Btw they were surprisingly good in the rain. Much better than I had expected considering they are a R-compound tire.

I'll keep on testing as I destroy the current tires R1s.
Old 07-25-2008, 08:14 AM
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Anyone ever try Nitto Invo's? Crazy tread blocks. 1/2 the tire looks like a F1 tire, the other half almost a slick with some channeling for water. At $200/tire installed, I may try them in a cple thousand more miles.
Old 07-25-2008, 09:42 AM
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A friend of mine had the Invo's installed on his Mini S, and he said took him a long time before the tires are warmed, not as sticky as some others he'd used before.

SLK55R,
Thanks for the tip, so 235/40/18 & 265/35/18, correct?
Old 07-25-2008, 11:53 AM
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'10 Porsche Turbo PDK, 500e, GL450
yup

those are the right sizes ... sorry didn't put in profile earlier.
Old 07-25-2008, 05:12 PM
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Heck, it's a 260 rated tire...wouldn't imagine it would be tacky at normal operation. Of course, you could go lower and get stickier...but then you'll be replacing them all the sooner...some sooner than others depending on driving style. D#%n Schnellfahrers....
Old 07-26-2008, 05:37 PM
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Thanks, SLK55R.

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