AMG C63s Tire Size increase
Senior Member
Joined: Feb 2016
Posts: 306
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AMG C63S
I blame the guys on these forums for me busting up both of my front rims. WHY? Because I followed the leader and lowered the tire pressure to get more rubber on the road and by doing so the tire didnt have enough rebound to save my rim. Now that I have larger tires I fill those suckers up high so no rim dents. Thats my solution over a 35 tire
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Joined: Sep 2015
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From: Sydney
AMG GLC63 E-Performance Edition 1
I blame the guys on these forums for me busting up both of my front rims. WHY? Because I followed the leader and lowered the tire pressure to get more rubber on the road and by doing so the tire didnt have enough rebound to save my rim. Now that I have larger tires I fill those suckers up high so no rim dents. Thats my solution over a 35 tire
Junior Member
Joined: Nov 2015
Posts: 42
Likes: 6
From: Orlando, FL
2016 C63S AMG
After a little over 6k miles, my stock Dunlop Sport Maxx RT's are ready to kick the bucket. For the C63S Sedan, what's the consensus for going wider and properly matching the fronts?
I'd like to go to 275 rears, but what thickness should I go with and what size should I do in the front? Can I keep the stock front size?
Also, I am running the stock 19in rims.
Thanks in advance for any input!
I'd like to go to 275 rears, but what thickness should I go with and what size should I do in the front? Can I keep the stock front size?
Also, I am running the stock 19in rims.
Thanks in advance for any input!
Senior Member
Joined: Feb 2016
Posts: 306
Likes: 31
AMG C63S
Vertice: I am not the tire expert but, I did plenty of research before I switched sizes. I had the factory Dunlops and they were shot at about 10k miles, around the same time I dented both front rims and needed to repair them and replace the tires.
I can't tell you the absolute maximum size but I went with 265 on front and 285 rear. I have the factory forged alloy 19" rims. I also kept the 30 profile from stock and did not go with 35's.
My reasoning was kind of primitive but, heres my thinking..
Factory profile was 30 and not 35 so I preferred to stay with the factory number. I also prefer a lower profile look and was concerned with rubbing if I changed the height from 30 to 35. So, I kept 30.
Factory profile kept a "20" differential between front and rear. 245/265. I didnt want to throw off the geometry or change it too much from factory numbers. So, I kept the same "20" differential and went with 265/285. I know that people have gone larger in rear but, I wanted to keep that factory ratio.
I can tell you that between the rubber switch and increased size, the car drives like a much different vehicle. Much much better, less wheel spin, better handling. I can only assume the MB didnt go bigger because of some EPA or MPG issues because there is no reason to have those puny factory tires that spin with the slightest throttle pressure when you can add width and have significantly better handling and acceleration.
Hope this helps..
I can't tell you the absolute maximum size but I went with 265 on front and 285 rear. I have the factory forged alloy 19" rims. I also kept the 30 profile from stock and did not go with 35's.
My reasoning was kind of primitive but, heres my thinking..
Factory profile was 30 and not 35 so I preferred to stay with the factory number. I also prefer a lower profile look and was concerned with rubbing if I changed the height from 30 to 35. So, I kept 30.
Factory profile kept a "20" differential between front and rear. 245/265. I didnt want to throw off the geometry or change it too much from factory numbers. So, I kept the same "20" differential and went with 265/285. I know that people have gone larger in rear but, I wanted to keep that factory ratio.
I can tell you that between the rubber switch and increased size, the car drives like a much different vehicle. Much much better, less wheel spin, better handling. I can only assume the MB didnt go bigger because of some EPA or MPG issues because there is no reason to have those puny factory tires that spin with the slightest throttle pressure when you can add width and have significantly better handling and acceleration.
Hope this helps..
Junior Member
Joined: Nov 2015
Posts: 42
Likes: 6
From: Orlando, FL
2016 C63S AMG
Vertice: I am not the tire expert but, I did plenty of research before I switched sizes. I had the factory Dunlops and they were shot at about 10k miles, around the same time I dented both front rims and needed to repair them and replace the tires.
I can't tell you the absolute maximum size but I went with 265 on front and 285 rear. I have the factory forged alloy 19" rims. I also kept the 30 profile from stock and did not go with 35's.
My reasoning was kind of primitive but, heres my thinking..
Factory profile was 30 and not 35 so I preferred to stay with the factory number. I also prefer a lower profile look and was concerned with rubbing if I changed the height from 30 to 35. So, I kept 30.
Factory profile kept a "20" differential between front and rear. 245/265. I didnt want to throw off the geometry or change it too much from factory numbers. So, I kept the same "20" differential and went with 265/285. I know that people have gone larger in rear but, I wanted to keep that factory ratio.
I can tell you that between the rubber switch and increased size, the car drives like a much different vehicle. Much much better, less wheel spin, better handling. I can only assume the MB didnt go bigger because of some EPA or MPG issues because there is no reason to have those puny factory tires that spin with the slightest throttle pressure when you can add width and have significantly better handling and acceleration.
Hope this helps..
I can't tell you the absolute maximum size but I went with 265 on front and 285 rear. I have the factory forged alloy 19" rims. I also kept the 30 profile from stock and did not go with 35's.
My reasoning was kind of primitive but, heres my thinking..
Factory profile was 30 and not 35 so I preferred to stay with the factory number. I also prefer a lower profile look and was concerned with rubbing if I changed the height from 30 to 35. So, I kept 30.
Factory profile kept a "20" differential between front and rear. 245/265. I didnt want to throw off the geometry or change it too much from factory numbers. So, I kept the same "20" differential and went with 265/285. I know that people have gone larger in rear but, I wanted to keep that factory ratio.
I can tell you that between the rubber switch and increased size, the car drives like a much different vehicle. Much much better, less wheel spin, better handling. I can only assume the MB didnt go bigger because of some EPA or MPG issues because there is no reason to have those puny factory tires that spin with the slightest throttle pressure when you can add width and have significantly better handling and acceleration.
Hope this helps..
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MBWorld Fanatic!
Joined: Jul 2015
Posts: 1,216
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From: SoCal
2016 C63S Sedan
My thinking on this is that Tire rack charts say the widest tire on a 8 1/2 in rim is a 255. It is .2 inch larger dia. This doesn't mean you can't fit a larger tire in the wheel well but it will not ride flat on ground with proper air pressure. Others have done it but that doesn't mean it is the correct size.
On the rear I am leaning toward the 285/35/19 as they also show it is the largest tire for a 9 1/2 inch rim. Several reasons for this 1). .6 inch larger dia. and will fill the wheel well a little more. 2). It keeps the 35 aspect ratio as this car rides a little rough as it is and I don't want to go with a 30 as it would ride worse even if it was available. 3). More rubber for some better traction we all want.
Maybe the best is to go with a 275/35/19 but it would not have the traction the 285 would.
I know this goes up 1 size on front and 2 on rear but I don't think it will be a problem except on track and maybe not there.
Speedo will show 80 mph when you are actually going 81.8 so watch your speed (2.3%)
Remember these tires are for areas that don't dip below 40 deg F
Member
Joined: Jun 2015
Posts: 224
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2020 C63s Coupe, 2016 C63s Sedan
Newbie
Joined: Jul 2016
Posts: 5
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From: Moscow
C63S
Super Member
Joined: May 2011
Posts: 883
Likes: 72
From: Vancouver
2018 e63s edition 1
Lots of back and forth in the thread, just want to double check before I order (mostly concerned about the front width)
Have a 2017 sedan. Going to probably order
Ps4s in 265/35/19 front and 285/35/19
That should give me no problems, correct? No confused traction control or anything?
Have a 2017 sedan. Going to probably order
Ps4s in 265/35/19 front and 285/35/19
That should give me no problems, correct? No confused traction control or anything?
Senior Member
Joined: Jul 2019
Posts: 426
Likes: 76
From: UK
C63S
Sedan rear - 9.5 J x 19 ET56
This guy is using 9.5j x 20 with a 35 offset
A 20mm spacer will take the offset from 56 to 36 for the rear wheel, which means they will fit on the front, so sedan owners just need the spacer and can buy coupe rears for a working set. (In theory)
Super Member
Joined: May 2011
Posts: 883
Likes: 72
From: Vancouver
2018 e63s edition 1
Lots of back and forth in the thread, just want to double check before I order (mostly concerned about the front width)
Have a 2017 sedan. Going to probably order
Ps4s in 265/35/19 front and 285/35/19
That should give me no problems, correct? No confused traction control or anything?
Have a 2017 sedan. Going to probably order
Ps4s in 265/35/19 front and 285/35/19
That should give me no problems, correct? No confused traction control or anything?
