Tire Size/Wheel Offset question
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Joined: Jun 2007
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From: Peoria, AZ
W220
Tire Size/Wheel Offset question
Hello,
I am contemplating fitting some 20" AMG Aero II reps with the adjustable air ride links on my 2000 S430. The wheel specs are:
Front: 20x8 et 35
Rear: 20x10 et 42
My question is what tire size would I need to run and where would the wheels sit with the given offsets? I want to eliminate the wheel gap and have the wheels fit flush to the fenders (no poke). Any thoughts/advice would be helpful.
Here's an example of the fitment I'm trying to acheive. (except on a W220)
TIA,
Steve
I am contemplating fitting some 20" AMG Aero II reps with the adjustable air ride links on my 2000 S430. The wheel specs are:
Front: 20x8 et 35
Rear: 20x10 et 42
My question is what tire size would I need to run and where would the wheels sit with the given offsets? I want to eliminate the wheel gap and have the wheels fit flush to the fenders (no poke). Any thoughts/advice would be helpful.
Here's an example of the fitment I'm trying to acheive. (except on a W220)
TIA,
Steve
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Joined: Jul 2006
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04 S430 (sold),05 X5 4.4i, 02 325i, 87 560SL, 85 Alfa Romeo
Hello,
I am contemplating fitting some 20" AMG Aero II reps with the adjustable air ride links on my 2000 S430. The wheel specs are:
Front: 20x8 et 35
Rear: 20x10 et 42
My question is what tire size would I need to run and where would the wheels sit with the given offsets? I want to eliminate the wheel gap and have the wheels fit flush to the fenders (no poke). Any thoughts/advice would be helpful.
Here's an example of the fitment I'm trying to acheive. (except on a W220)
Steve
I am contemplating fitting some 20" AMG Aero II reps with the adjustable air ride links on my 2000 S430. The wheel specs are:
Front: 20x8 et 35
Rear: 20x10 et 42
My question is what tire size would I need to run and where would the wheels sit with the given offsets? I want to eliminate the wheel gap and have the wheels fit flush to the fenders (no poke). Any thoughts/advice would be helpful.
Here's an example of the fitment I'm trying to acheive. (except on a W220)
Steve
Tire sizes have nothing to do with how far a wheel sits in or out ( offset ). BUT i do know that you can not slam a 10" wheel on an S the way it is in the pic no matter what you use for a tire unless you don't plan on driving it.
Don;t get me wrong, you can get it within 1 to 1.5" wheel gap but forget about slamming it. you'll need to use 9.5 rears with 42 to 44 offset for that
then it will look more like the pic. but still may rub.
Standard 20" tires sizes in staggered fitment for the W220 are
255 35 20 front
275 30 20 rear
Thread Starter
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Joined: Jun 2007
Posts: 162
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From: Peoria, AZ
W220
Thanks for the response. I definitely won't have my S hammered like that CLK and I dont' plan on rolling my fenders for additional clearance. I posted that picture for reference of how the wheels actually fit within the fenders not the ride height. My daily driver ('95 VW Jetta) is slammed to the point where I have to use my scissor jack that came with the car in order to fit a floor jack underneath it. I've had it for less than a year and already been through 2 oil pans and 1 oil pump from daily bumps and grinds on the road. 
I'm not brave enough to put my S through that much abuse for vanity's sake.
I guess the question I should be asking is what are the ideal final offsets to fit 20x8 and 20x10 flush with the fenders? I don't mind running spacers if necessary.
I'm not brave enough to put my S through that much abuse for vanity's sake.I guess the question I should be asking is what are the ideal final offsets to fit 20x8 and 20x10 flush with the fenders? I don't mind running spacers if necessary.
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04 S430 (sold),05 X5 4.4i, 02 325i, 87 560SL, 85 Alfa Romeo
Thanks for the response. I definitely won't have my S hammered like that CLK and I dont' plan on rolling my fenders for additional clearance. I posted that picture for reference of how the wheels actually fit within the fenders not the ride height. My daily driver ('95 VW Jetta) is slammed to the point where I have to use my scissor jack that came with the car in order to fit a floor jack underneath it. I've had it for less than a year and already been through 2 oil pans and 1 oil pump from daily bumps and grinds on the road. I'm not brave enough to put my S through that much abuse for vanity's sake.
I guess the question I should be asking is what are the ideal final offsets to fit 20x8 and 20x10 flush with the fenders? I don't mind running spacers if necessary.
I'm not brave enough to put my S through that much abuse for vanity's sake.I guess the question I should be asking is what are the ideal final offsets to fit 20x8 and 20x10 flush with the fenders? I don't mind running spacers if necessary.
the 20X 10's being flush with the fenders with a 44 or 45 will be about all you can get. I'm thinking they will poke out 3 or 4 mm. Hardly noticeable, but will certainly rub a little even with average lowering.
I wouldn't put spacers if you can avoid it. The hubcentricity of these cars have to be almost exact or you will get vibration no matter how well you balance. Most spacers compromise that hubcentricity and cause vibration.
That said, it's best to compare what you want to get with wheels that are made specifically for mercedes cars such as Mandrus Wheel for example, and see what off sets they are using for a given profile and car. You should be able to match those with your profile and get a good idea of which offset you will need for the wheels you are wanting to purchase.
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From: Peoria, AZ
W220
I just looked at the wheel specs again. The fronts are 20x8.5 not 20x8 as I mentioned earlier.
benznodubz - What are the widths and offsets of your setup? Do you scrape a lot at that height?
benznodubz - What are the widths and offsets of your setup? Do you scrape a lot at that height?
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From: OC
AMG E55, Stage 1, Strait Pipe from Primary Cats
If you are running 20's on an S class you will have a 30 rear's and 35 fronts. The same goes for 19's and you can also run a "fat" setup (19's) which has 35 rear's and 40 front's. I have ran all of these setups and they are all pretty good but the 19's are the best possible setup as far as performance and handling, with 20's you lose performance but you get a certain look, either is fine but you have to chose what is important to you.. If you like the look of 20's then go for it, but make sure you lower your car if going with 19' or 20's to avoid the chuck wagon look.
ps. click on find S500MAN or my profile (find more posts by us) we talk alot about this regarding 20's on his ride
Last edited by Vader55; Oct 13, 2007 at 12:22 AM.
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Thread Starter
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Joined: Jun 2007
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From: Peoria, AZ
W220
Gondon,
20 = wheel diameter
8.5 = wheel width
et 42 = offset (backspacing); this is usually measured in mm from the center of the wheel in either direction. A positive offset would be the measurement from the middle of the wheel towards the front (face) and a negative offset would be that measurement towards the back of the wheel. A 42mm offset on a 8.5" wide wheel is going to have different backspacing than if it were on a 10" wide wheel.
IMO.....proper offset is often overlooked and will cause wheels to be either tucked too far inside the fenders to cause rubbing against suspension components or poke too far out and rub against your fenders or stick out past your fenders.
Since I'm new to these cars, I'm just trying to educate myself so I'm not stuck with wheels that don't fit right or I'm not happy with.
20 = wheel diameter
8.5 = wheel width
et 42 = offset (backspacing); this is usually measured in mm from the center of the wheel in either direction. A positive offset would be the measurement from the middle of the wheel towards the front (face) and a negative offset would be that measurement towards the back of the wheel. A 42mm offset on a 8.5" wide wheel is going to have different backspacing than if it were on a 10" wide wheel.
IMO.....proper offset is often overlooked and will cause wheels to be either tucked too far inside the fenders to cause rubbing against suspension components or poke too far out and rub against your fenders or stick out past your fenders.
Since I'm new to these cars, I'm just trying to educate myself so I'm not stuck with wheels that don't fit right or I'm not happy with.
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From: Brooklyn
02 S500 Sport
thx as i c
Offset is like the radius or some ****, or how it sticks out and not rubbing the inside of the front fender..
http://www.tirerack.com/wheels/tech/...jsp?techid=101
nvm i dont understand it all at
http://www.1010tires.com/WheelOffsetCalculator.asp
http://www.yokohamatire.com/utcustom.asp
ok kind of got it. Anways thx god we have ppl on forums to advise us about what rims to get and not
Offset is like the radius or some ****, or how it sticks out and not rubbing the inside of the front fender..
http://www.tirerack.com/wheels/tech/...jsp?techid=101
nvm i dont understand it all at
http://www.1010tires.com/WheelOffsetCalculator.asp
http://www.yokohamatire.com/utcustom.asp
ok kind of got it. Anways thx god we have ppl on forums to advise us about what rims to get and not
Last edited by Gondon; Oct 13, 2007 at 02:50 PM.
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04 S430 (sold),05 X5 4.4i, 02 325i, 87 560SL, 85 Alfa Romeo
