GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

2011 GL 450 Rim size 20x10 can they fit without rubbing???

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Old Dec 29, 2010 | 02:06 PM
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2011 GL 450 Rim size 20x10 can they fit without rubbing???

I'm Looking at the 20x10 MANNHEIM GUNMETAL w/ Mirror Cut Face & 3" Lip. I love the look but just wondering if they would rub in the front when turning. I installed the 550 fender flares so I need a wider wheel to make up the deference.....
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Old Dec 29, 2010 | 02:33 PM
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If you get the 20X10 ET54mm.....you should be OK!!!
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Old Dec 29, 2010 | 03:03 PM
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They come Standard with a ET42 and the 550 recommended size is 22x10.5 ET42.... Why should I go with and ET54???
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Old Dec 29, 2010 | 04:42 PM
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Originally Posted by themasonGL450
They come Standard with a ET42 and the 550 recommended size is 22x10.5 ET42.... Why should I go with and ET54???
No, that's bad advice. Since you have the 550 fender flares you need to go with a wheel that has less offset. The GL550 wheels are 21X10 ET 37. If you are going with a 20X10 ET 42, the wheels will be sunk into the fender by 5 MM as compared to the 550's wheels. If you went with an ET 54 on a 10" wheel, the wheels and tires would be set-back into the fenders by 17 MM. That would look horrible and is what you are trying to get away from with the new flares.

10.5 with ET 42 would look great and you would not need spacers. It would extend out an additonal 1 mm which is not going to make a difference.

You can run a 5 mm spacer on the 42 offset wheels and get to an ET 37 which would be the right offset given the 550 fender flares. Make sure you get the right length lug bolts and they match the seat of the new wheels.
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Old Dec 29, 2010 | 05:09 PM
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Thanks BlownV8 for all the correct info, makes much more sense now.... Just didn't sound right what B. Gorman was stating.... Thanks again, will post pic's when completed....
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Old Dec 30, 2010 | 05:31 AM
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You are welcome. B. Gorman probably missed the fact you went to the 550 fender flares.
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Old Dec 30, 2010 | 09:02 PM
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I agree with blownv8, the mandrus rims will be a great fit and offset with the gl550 flares.

I would say go with a 305 -40-22 tire or a 303-35-22 if your lowered.

I have 305-40-22 on a lower gl450, no flares on 22x9.5 et 50 rims and the fronts are just a bit inside the wheel well, almost flush. I do get a little rub and full turn in reverse. nothing else.

I wonder how the mandrus et42 rim would look on a gl450 with no flares and 305s?
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Old Dec 30, 2010 | 11:29 PM
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A 10" ET 42 will extend beyond the front fender on a GL without the flares. It may not look too bad. Mine extend slightly beyond the front fenders and I'm running a 9.5 ET 35. The only way you can tell is to look at it from the top of the hood and look down. You can't see it from the front, back, or sides. The 10" ET 42 would be a good fit in the back. For some reason, the GL fenders have more room in the rear than the front.
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Old Dec 31, 2010 | 12:19 PM
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I wasn't thinking about the flares adding another 10-15mm of cover...as much as I was thinking about inner wheel clearance!!!
You can't always go with the offset of a wheel, because depending on what style wheel it is...backspacing is more important than offset. Factory mercedes wheels usually don't have a lip...or at the most a small lip...with a curved back spoke.

I said the 54mm on a 20X10 would be better suited, because if you look on the TSW/Mandrus site...they recommend the 20X9 (ET42) for the GL. The OP wanted to go with a 20X10 wheel. The specs for the wheel are 20X9 (with a 1.75" lip), and the 20X10 (has a 3"lip).
Also...when buying wheels...outside of the wheel mfg suggested sizes...your usually on you own if you have any issues (rubbing vibration ect......stupid practice by mfgs....but so true!!)
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Old Dec 31, 2010 | 05:06 PM
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can b.gorman shed some light on what happens when you have two wheels with same offset, say et 42, but one is a 9.5 and the other is say 10.5.

does the 10.5 simply add a .5 inch to the outside and inside? or is the backspacing stay the same and the rim pushes out one inch?
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Old Dec 31, 2010 | 09:37 PM
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http://www.1010tires.com/WheelOffsetCalculator.asp

http://www.fourwheeler.com/techartic...tte/index.html

Last edited by BlownV8; Dec 31, 2010 at 09:43 PM.
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Old Jan 1, 2011 | 11:27 AM
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Blown v8...great link. That is very informative.

do you have any picks of your gl on the web?

What size are your rims again 22x? et35 with 305 40 22 tires right?

I'm starting to think I'm better off staying with my 9.5 size rim and just push the offset out a bit more.
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Old Jan 1, 2011 | 02:27 PM
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No pics. Yes, 22X9.5 ET 35 with a 305/40/22. I would go with an ET 50 if I had to do it all again. I still may add the fender flares and some spacers to bring the wheels to the edge of the flares.
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Old Apr 13, 2011 | 05:02 PM
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hi BlownV8.

sorry, i need a bit of clarity as i am not mechanically minded!

i am thinking of replacing my 20"x10" Brabus monoblocks fitted with 275 50 20's with a set of 22"x 9.5" ET 35 alloys with a 305/40/22 tyres...

why would you change the offset next time round?

my GL is standard ( ie no wheelarch flares ); what can i expect?

will there be rubbing anywhere?

will the tyres stick beyond the standard wheelarches?

how was the ride altered?

sorry for questions, but def best to ask before finding out problems the hard way!

thanks for any responces in advance
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Old Apr 13, 2011 | 09:47 PM
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The back fit perfectly while the front extend a little past the fender. You can't tell looking at the car from the front or side but you can see while looking down on top of the fender. ET50 would be perfect. ET35 throws a little bit of mud/dirt on the fender when the roads are wet.
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Old Apr 18, 2011 | 09:17 AM
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Here is a side view of my 20x10 et50 wheels with 295/45-20 tires. the front stays just inside the lip of the top of the fender - perfect in my opinion.

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Old May 20, 2011 | 11:55 PM
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hi all.. thanx for all the information.. just wanted to know- aftermarket amg reps 20" / 9.5 / offset 46 on a GL 450- no flares .. will that work- would i need spacers/mods? wont rub or anything right? are aftermarkets ok? these are chinese- what tire size would work , 285 45 20 or can i do 295s ? other option is stock premier edition 20s-- thanx in advance..
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Old May 21, 2011 | 08:18 PM
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Originally Posted by sraza
hi all.. thanx for all the information.. just wanted to know- aftermarket amg reps 20" / 9.5 / offset 46 on a GL 450- no flares .. will that work- would i need spacers/mods? wont rub or anything right? are aftermarkets ok? these are chinese- what tire size would work , 285 45 20 or can i do 295s ? other option is stock premier edition 20s-- thanx in advance..
reps should be ok. make sure you deal with a reputable dealer if case you have trouble balancing them, they can replace any defective merchandise. Size works without modifications. I would go with the 295/45 20s. Premier edition 20's are also nice but 295 would be too wide a tire for them. 285 max I think.
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Old May 21, 2011 | 09:04 PM
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thanx much for that reply.. apprct it.. premiers are great but these amg reps on ebay are sweet.. ml 63 reps.. so 295 it is.. would 295s be ok for the fronts? shouldnt cause any steering stifness right? thanx again..
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Old May 23, 2011 | 06:48 AM
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Originally Posted by sraza
thanx much for that reply.. apprct it.. premiers are great but these amg reps on ebay are sweet.. ml 63 reps.. so 295 it is.. would 295s be ok for the fronts? shouldnt cause any steering stifness right? thanx again..
Steering stiffness isnt an issue. Make sure max load rating on the wheels is at 960kg or higher.
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Old May 26, 2011 | 07:05 PM
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thanx again for that info.. so reps have NO weight rating.. sooo im thinkin of sticking with stock premier editions with 285/50/20s.. they are kinda hard to get but im gettn a pretty good deal.. lets see what happens..
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Old Jun 21, 2011 | 09:07 PM
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still looking for rims.. aftermarkets wernt good enough, right now confused between oem ml 63 - 20/10 offset46 vs premier edition oems.. now, would ml 63 oem amgs 20/10 offset 46 be a good wheel for a gl 450 with no flares and 285/50/20s? wont need any mods right? thanx for the advice in advance..
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