Bigger tires?
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From: Georgia
2010 GLK 350 Sandstone Beige
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Nissan GT-R BE / '12 Ducati-1199 Panigale S / '12 C300-4M Loaded/GLK350-4M Loaded
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From: Canada
Me, 2008 Hummer H2 Wife, 2010 Mercedes GLK350
I think a 245-40-20, or 255-40-20 would be the same size diameter, just a bit wider. It wouldn't throw out the speedo, but may rub when you turn the steering wheel.
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From: Ft Myers FL
2010 Barolo Red-Almond/Black GLK 350, 2008 Cadillac Gold Mist LUX III DTS
The 245-40 has a diameter of 27.7 inches
The 255-40 has a diameter of 28.0 inches
This is a difference of 1.1%
If you use the 255-40 when your speedometer reads 60MPH, you will actually be traveling 60.7MPH.
The 255-40 has a diameter of 28.0 inches
This is a difference of 1.1%
If you use the 255-40 when your speedometer reads 60MPH, you will actually be traveling 60.7MPH.
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From: Florida
2010 GLK 350, Palladium, P01,Chrome inserts,running boards,Bi-Xenons,Multimedia,AMG Body&Wheels,Tow.
Tires
I was at the dealer today checking on my delivery date, they had three GLK350 in with the AMG Wheels and body package, There are two diffrent sets of tires on the car...245/40/20 and 245/35/20. so we know now they cannot be rotated. My understanding was that Merceded did this for the high speed handeling in Germany, I asked the head of service with his top mechanic, and he advised never to fool with the sizes because of the way the handeling was calibrated, also the AMG wheel with these tires also caused a slight adjustmemt from the factory in the cars suspension.
While I was at the dealer and since my friend is on the higher ups, we took out a plane jane 350 with 20,s and went on what we call the "Turnpike" in S Florida.. we were tooling around at 117 mph and there was no wind noise but the car did have what felt like a slight sway to it,also it had more power to run. I am use to (Infinity's)..anyhow we proceeded to get off of an exit that was marked exit speed 35mph and we were doing 80mph and the car was like glue to the road. So this was my fooling around test with a dealers car.. Last I was advised to change oil at least every 5000 miles even though it says 10000, and not to worry about breakiung the GLK in.."Drive like who you are" is what I was told.
While I was at the dealer and since my friend is on the higher ups, we took out a plane jane 350 with 20,s and went on what we call the "Turnpike" in S Florida.. we were tooling around at 117 mph and there was no wind noise but the car did have what felt like a slight sway to it,also it had more power to run. I am use to (Infinity's)..anyhow we proceeded to get off of an exit that was marked exit speed 35mph and we were doing 80mph and the car was like glue to the road. So this was my fooling around test with a dealers car.. Last I was advised to change oil at least every 5000 miles even though it says 10000, and not to worry about breakiung the GLK in.."Drive like who you are" is what I was told.
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Nissan GT-R BE / '12 Ducati-1199 Panigale S / '12 C300-4M Loaded/GLK350-4M Loaded
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glk
Thank you all for your responses. The reason I was trying to go for bigger tires was due to DAMN POT HOLES..The standard size tires on the 20" rims can certainly use some extra meat. Love my truck but the tires are, it's weakest link...
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From: Toronto
GLK350
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The tires are the weakest link. Riiiiiiiiiight...
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From: Toronto
GLK350
I want 20s with extra large rubber, not 17, not even 19s bro
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From: Calgary, AB, Canada
2015 GLK 250 BlueTec with AMG Sport package.
Oh, that looks meaty! I had 245/45/20 Firestone tires as my summer set and they were great, with plenty of clearance struts/shocks in a wheel well.
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From: Quebec, Canada
GLK 250 Bluetec
I bought 255/45/20 Kumho PA51 tires last year and they fit without issue.
But I hate it. The ride is too firm for Quebec roads and you can feel everything, especially with the worn down (+220 000km) original suspension. I just bought new wheels and tires, and I am switching back to higer profile tires.
Also, I noticed a 10-15% increase in fuel consumption with the 255 compared to my narrower winter tires. So what's the point ?
But I hate it. The ride is too firm for Quebec roads and you can feel everything, especially with the worn down (+220 000km) original suspension. I just bought new wheels and tires, and I am switching back to higer profile tires.
Also, I noticed a 10-15% increase in fuel consumption with the 255 compared to my narrower winter tires. So what's the point ?
