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Old Oct 24, 2013 | 10:05 AM
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C63 Edition 507 wider tires

Hi All,

I am looking at purchasing some wider rear tires for my 19" 507. I am purchasing some Toyo R888. I want to go wider but not sure how much wider I can go on the 507 stock rims. Does anyone know?
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Old Oct 24, 2013 | 11:05 AM
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The only choice I see on Tire Rack that will fit in a R888 is the 265/30/ZR19.

Although a bit wide for the rim you can fit a 275/30/19 if available in some other brand.
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Old Oct 24, 2013 | 11:16 AM
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Originally Posted by Mort
The only choice I see on Tire Rack that will fit in a R888 is the 265/30/ZR19.

Although a bit wide for the rim you can fit a 275/30/19 if available in some other brand.
Thanks for the find, Mort. I am going to start with a 265 just to be safe. I wouldn't want that tire popping off the rim on road bump loads.
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Old Oct 25, 2013 | 12:21 AM
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is it bad im running 285 on stock 18"s rear ?
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Old Oct 25, 2013 | 12:49 AM
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275s will be fine, people have run 285 R888s on the 9in wheel before.
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Old Oct 25, 2013 | 07:43 AM
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Originally Posted by charliekay
275s will be fine, people have run 285 R888s on the 9in wheel before.
Interesting... I'll have to look into this further. I didn't know you could go that wide. How is this actually determined?
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Old Oct 25, 2013 | 11:41 AM
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Depends on how wide the tire is for the size rating. Some manufacturers tires are wider and some narrower in the same size rating, say the 285 rating for example. I know some have been able to fit one of the Nitto tires in a 285. Sorry can't remember exactly which tire series but one that was selected for drag racing.
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Old Nov 7, 2013 | 09:50 AM
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C63 507 Coupe , Cayman GTS
275/30/19 Michelin Super sports in rear or for max performance , also thinking about Potenza RE-11-A's. Can't go wrong with either imho.
But the question is what size do you install for the fronts to compensate for the increased grip on the rears?
Thoughts anyone?

I will continue to research front sizes as there may be info for the 507's tire combo larger "no rub" in Michelin Super sports/ Potenza RE-11A's.

link to a matching set . I am not familiar with these yokos but the fitment looks dead on.
http://www.tirerack.com/tires/tires....omCompare1=yes

link to car and driver comparision 2012. This is old news to most but a good read.
http://www.caranddriver.com/comparis...va-ad08-page-8

Last edited by Ruff507; Nov 7, 2013 at 10:20 AM.
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Old Aug 30, 2014 | 11:53 PM
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Originally Posted by Ruff507
275/30/19 Michelin Super sports in rear or for max performance , also thinking about Potenza RE-11-A's. Can't go wrong with either imho.
But the question is what size do you install for the fronts to compensate for the increased grip on the rears?
Thoughts anyone?

I will continue to research front sizes as there may be info for the 507's tire combo larger "no rub" in Michelin Super sports/ Potenza RE-11A's.

link to a matching set . I am not familiar with these yokos but the fitment looks dead on.
http://www.tirerack.com/tires/tires....omCompare1=yes

link to car and driver comparision 2012. This is old news to most but a good read.
http://www.caranddriver.com/comparis...va-ad08-page-8
Hey Op,

Any update on this? I have a 507 and I am thinking of the same thing.
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Old Aug 31, 2014 | 12:05 AM
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From: 多伦多
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275/30 on stocks w/ a 10mm spacer.

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Old Aug 31, 2014 | 12:10 AM
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2014 C63 AMG 507
Originally Posted by 149max
275/30 on stocks w/ a 10mm spacer.

Ah sweet! Did you go wider in the front too? Or no need to compensate? Also would a local tire shop have the 10mm spacers, or should I purchase them on my own? Sorry for all the questions but I need to get this right.

Nice looking car!!!
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Old Aug 31, 2014 | 12:11 AM
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12mm spacer on front. So didn't upsize. It might rub if you go spacer and upsize, but without spacer the offset kinda weak.

I unno 235 seems fine for the fronts imo.
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Old Aug 31, 2014 | 12:14 AM
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Originally Posted by 149max
12mm spacer on front. So didn't upsize. It might rub if you go spacer and upsize, but without spacer the offset kinda weak.

I unno 235 seems fine for the fronts imo.
Awesome, thanks!
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Old Aug 31, 2014 | 12:16 AM
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Esp w/ pss its pretty flush. You might even be able to push for 15mm in front to be on point but it might rub sometimes at that point.
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Old Aug 31, 2014 | 12:19 AM
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2014 C63 AMG 507
Originally Posted by 149max
Esp w/ pss its pretty flush. You might even be able to push for 15mm in front to be on point but it might rub sometimes at that point.
Yeah probably. Good to know...I am planning on going with the PSS
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Old Aug 31, 2014 | 12:22 AM
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Here's another pic, it's pretty flush in the front already.

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Old Aug 31, 2014 | 12:24 AM
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Originally Posted by 149max
Here's another pic, it's pretty flush in the front already.

Hooooot!! Looks stellar!! Yup...12mm spacers in the front it is!
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Old Aug 31, 2014 | 12:27 AM
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Forgot your other question, spacers I got from vivid racing, go contact the new guy, should be about $100 shipped a pair.

And I used longer bolts from rad. If you go 10 mm spacer in the back you will prolly have to shave a few mm off to clear the parking brake sensors (I had to anyway in my 507 coupe).

http://otisincla.com/index.php?route...roduct_id=1057
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Old Aug 31, 2014 | 09:07 AM
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From: Burke, VA
2014 C63 AMG 507
Originally Posted by 149max
Forgot your other question, spacers I got from vivid racing, go contact the new guy, should be about $100 shipped a pair.

And I used longer bolts from rad. If you go 10 mm spacer in the back you will prolly have to shave a few mm off to clear the parking brake sensors (I had to anyway in my 507 coupe).

http://otisincla.com/index.php?route...roduct_id=1057
Awesome! Thanks for the info..
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Old Aug 31, 2014 | 09:54 AM
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Originally Posted by 149max
Here's another pic, it's pretty flush in the front already.

looks boss
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Old Aug 31, 2014 | 09:56 AM
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I just bought an expensive lug/lock set for the rear as well. Damn. Do you need spacers in the back for 275's? Probably so...
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Old Aug 31, 2014 | 09:57 AM
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Agree, looks pretty much optimized.


Before I converted my 507 to the BS body, I ran 1/2 inch spacers all around with the stock Contis, with 40 mm shank bolts. No rubbing or binding, so on 10mm spacers in the rear, you may have to shave off max. 2 mm.
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Old Aug 31, 2014 | 10:03 AM
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From: Burke, VA
2014 C63 AMG 507
Originally Posted by Wobble64
Agree, looks pretty much optimized.


Before I converted my 507 to the BS body, I ran 1/2 inch spacers all around with the stock Contis, with 40 mm shank bolts. No rubbing or binding, so on 10mm spacers in the rear, you may have to shave off max. 2 mm.
Sorry for the dumb question, shave 2mm off what? I am going to go with the 275s in the rear with spacers.
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Old Aug 31, 2014 | 10:07 AM
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Original lug bolts have 28mm shank length. The next length up, that is common, is 40mm, i.e. 12 mm longer. So, if you use a 1/2 inch spacer, 40 mm will have the same depth of engagement of the bolt than the 28 mm stock without the spacer.


If you use 40mm bolts with a 10 mm spacer, it will engage 2 mm deeper that original. If the original was completely at the limit, you might have to shave up to 2 mm off of the longer lug bolts. It may be fine as is, but worst case, you may have to grind 2 mm off. No big deal.
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Old Aug 31, 2014 | 10:15 AM
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From: Burke, VA
2014 C63 AMG 507
Originally Posted by Wobble64
Original lug bolts have 28mm shank length. The next length up, that is common, is 40mm, i.e. 12 mm longer. So, if you use a 1/2 inch spacer, 40 mm will have the same depth of engagement of the bolt than the 28 mm stock without the spacer.


If you use 40mm bolts with a 10 mm spacer, it will engage 2 mm deeper that original. If the original was completely at the limit, you might have to shave up to 2 mm off of the longer lug bolts. It may be fine as is, but worst case, you may have to grind 2 mm off. No big deal.
Gotcha! Thanks much....
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