Wheels Question








I bought 8.5” wheels all around for my winter tires (et45) and to the naked eye they look much the same as the factory position. There is about 1/4” difference-front wider and 1/4”-rear narrower and until you measure it’s very hard to see any difference because of the taper of the fender well.




Second-you have that reversed-12mm spacers on the rear would make them wider, it’s the front that are narrower at et57. I get that confused often too.
My Mercedes shop foreman referred to my wheels as staggered when discussing rotation. By definition they are staggered, but as you say the different wheel/tire widths give a more staggered appearance and are normally what is referred to as staggered. It’s a minor point but maybe not to anyone rotating their own tires. The 20” AMG wheels with staggered offsets on the 202x don’t look different. Even tire shops don’t always get it right. When I took mine in at 12k to rotate the tires, the installers double checked with me because they couldn’t see the difference and they wondered why I wanted the tires switched and RFBed.




Second-you have that reversed-12mm spacers on the rear would make them wider, it’s the front that are narrower at et57. I get that confused often too.
My Mercedes shop foreman referred to my wheels as staggered when discussing rotation. By definition they are staggered, but as you say the different wheel/tire widths give a more staggered appearance and are normally what is referred to as staggered. It’s a minor point but maybe not to anyone rotating their own tires. The 20” AMG wheels with staggered offsets on the 202x don’t look different. Even tire shops don’t always get it right. When I took mine in at 12k to rotate the tires, the installers double checked with me because they couldn’t see the difference and they wondered why I wanted the tires switched and RFBed.
For the same width wheels, lower offsets will push wheels out toward fender's edge (OEM 9" wide et44 rear wheels), while higher offsets push wheels in toward the strut (OEM 9" wide et57 front wheels). The rear wheels are not "wider", nor front wheels are "narrower". They are identical accept for the offset difference which determines their relative placement on the hub (yes, front to rear rotation is not possible as with staggered wheels). So hypothetically if you have 4 aftermarket or replica wheels of say et55 and want OEM like fitment, you need to add rear spacers of 10mm to 20mm, does not need to be exactly 12mm. Now with spacers rotation is possible because spacers will remain on the rear hub, while wheels are identical including offsets. I'm done educating and replying to the posts based on ignorance rather on knowledge.
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There’s no reason to get rude just because your “opinion” is questioned. I find a healthy disagreement useful but then don’t kid myself to think “I know it all”.
Obviously you aren’t familiar with AM wheels. The problem isn’t getting lower offset wheels for the rear but the higher offset fronts that can’t be fixed with spacers. The 12mm I thought we were discussing was my winter wheels. Spacing the rear isn’t the issue so excuse me if you switched the discussion to a new one. Once you go to 21” & 22” Wheels there are few if any high offset choices other than maybe Factory or a custom made Billet.
Obviously you aren’t familiar with AM wheels. The problem isn’t getting lower offset wheels for the rear but the higher offset fronts that can’t be fixed with spacers. The 12mm I thought we were discussing was my winter wheels. Spacing the rear isn’t the issue so excuse me if you switched the discussion to a new one. Once you go to 21” & 22” Wheels there are few if any high offset choices other than maybe Factory or a custom made Billet.
https://en.m.wikipedia.org/wiki/Whee..._wheel_fitment




https://en.m.wikipedia.org/wiki/Whee..._wheel_fitment
The most important point is that owners need to be aware that they are different. I wonder how many people have rotated them front to back thinking they are the same?




"Your existing setup is 20”x9” wheels all around with an offset of 57mm front and 44mm rear"
I learn something new every day in this forum!




"Your existing setup is 20”x9” wheels all around with an offset of 57mm front and 44mm rear"
I learn something new every day in this forum!




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MORE PICS ON THIS LINK
Can I use 4 identical rims/tires on my 21 GLE 53?
Example: 275/45/21 winter tires all round.
10x21 ET 51 front 10x21 ET 51 rear? (OEM rims)
this would be a winter setup.
can I use same 21 OEM rims on all 4 corners with same offset?
example: 10x21 ET 51 front and 10x21 ET 51 rear with 275/45/21 winter tires all round…?? Is yes, do I need spacers for rears since offset is the same?




Consider 20' ratherthan 21. I ran 20" et 35, 20" has more tire options than 21's. I had the larger 6 piston brakes in front and still had caliper clearance of 3/16". To get wheel options I used a GLE450 since most aftermarket guys won't allow you to spec a square setup from staggered, different wheel size or different speed ratings.




Just to be clear my car is a 2021 GLE 53.
so in order to use the rims I described I would need 12mm spacers + 12mm extended lugs for rear? (Because of rear having ET51 offset)
These are OEM rims just seems I have 4 fronts instead of 2 fronts of 10x21 ET 51 and rears being 11x21 ET 47 -> I have 4 10x21 ET51’s with 275/45/21 winter tires



