On screen Wheel offset(ET) calculator

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sinewave

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Having spent some time studying this subject most of the websites on tinternet are rubbish for explanations and visual examples.

This site I found is brilliant and lets you type in and adjust all the parameteres then gives you a technical and visual graphic of your proposed wheel tyre combo.

Custom rims, wheel tire packages for your ride - RIMSnTIRES.com

:)

Might be worth a 'sticky' if others agree?
 
Thats good... much better than the tyre only comparator I normally use
 
Having spent some time studying this subject most of the websites on tinternet are rubbish for explanations and visual examples.

This site I found is brilliant and lets you type in and adjust all the parameteres then gives you a technical and visual graphic of your proposed wheel tyre combo.

Custom rims, wheel tire packages for your ride - RIMSnTIRES.com

:)

Might be worth a 'sticky' if others agree?
PLEASE PLEASE HELP! W126 420 SEL 1991 Wheels

I've only just joined this forum as I'm trying to find an answer to a question about W126 wheels.

My W126 420 SEL 1991 came with steel wheels and hubcaps (205/65/15- 7J x 15 H2 & E25 offset). However I've seen some alloys for sale, currently fitted to a W126 300 SE 1991 (205/60/15 - 7J x 15 H2 & E 40 offset).

Some have told me they wont fit/will rub/affect the handling and steering etc because the offset difference is so much (I don't think the alloy originally came from an S class, but are now fitted too a W126 like mine. The only difference being mine is a 420 SEL.). Others said they fit just fine without any adverse problems at all.

Please can someone help and clarify. Unfortunately I can't take the car with me to put on the alloys and check first so need to know beforehand.

I tired the calculator but am not very knowledgeable on how it works and whether in summary they will be ok or not. Please please HELP! Many thanks in advance!
 
I dont think they will fit. And if they do, they will look rubbish because they will sit too far in. The rear wheels will likely work ok apart from looking silly, but possibly the front wheels will not clear the brake calipers.

I'd suggest you look for a set of the right wheels. They come up often enough. But beware ebay sales where they list the cars the wheels will fit, its usually a load of rubbish.
 
They would work with a 15mm spacer...and probably longer bolts.
 
Hi! Thanks for your advice! I am a bit confused as to why they seem to fit nicely on the same model as my car, apart from that one is a 300 SE and mine is a 420 SEL. Any thoughts?
 
Yup indeed, spacer would work, but they cost loads for decent ones that wobnt cause wobbles. And longer bolts will add to the cost.

The 300SE and 420SEL are the same in this respect, so I'm guessing the 300 they are on has spacers fitted? Or, perhaps they happen to work ok because of the shape of the wheel? Anyway, ones for your car do come up. Maybe try Rob Parker at Three Pointed Parts, or any other breaker.
You just need to look for et25ish or less MB wheels.
 
Yup indeed, spacer would work, but they cost loads for decent ones that wobnt cause wobbles. And longer bolts will add to the cost.

The 300SE and 420SEL are the same in this respect, so I'm guessing the 300 they are on has spacers fitted? Or, perhaps they happen to work ok because of the shape of the wheel? Anyway, ones for your car do come up. Maybe try Rob Parker at Three Pointed Parts, or any other breaker.
You just need to look for et25ish or less MB wheels.
Thanks! Really appreciate your advice!
 
E class coupe 2010 winter tyres need help

Hi All...apologies if this subject has been covered before... I have a 2010 E coupe 350 CDi with the optional 19" AMG wheels fitted as standard... i have found it impossible to find winter/snow tyres for my car.... i have been told to fit 18" wheels and then i will have no problem....

I have no idea what offset rim size i have at present...or how to check.. my rear tyres are 255/30/Z19 and fronts 245/35/Z19 i have been told by a local tyre fitter my rims are actually the same size front and rear...

Q what rims should i get ie 18x? x?offset....

I have no idea where to buy spare rims.. ive seen some c class 18 inch AMG's and some CLS AMGs for sale 2nd hand on Fleabay.... but i have no idea if they have the same offset or if they will fit... im nor rich i have £500 for the wheels and about £200 for tyres.... am i dreaming....

Help please...... im pulling my hair out... wish id gone for the 18 inchers when i ordered car.....:(
 
W208 help

Wll these wheels fit on my clk230 kompresser coupe 1998


Kudo Wheels
Model: TZ274 (Staggered Wheels)
Size: 18"x8.5", 18"x 9.5"
Offset: +32mm, +35mm
Bolt Pattern: 5x112
Finished: Matte Black
Center Bore: 66.6mm
Material: Alloy

Need help ASAP!
 
They should fit, Brabus made a similar size and offset
 
hi

I have a C32 2002 and looking at some 18s They are Et18 8J front and Et33 rear 9.5J do you know if they will fit
 
CLS rim swap

Hi
Sorry to ask a stupid, first Q but I've recently bought a 2011 w218 CLS350 CDI Sport Bluefficiency Mercedes which is great except for two things: the ride is VERY firm and there's a lot of road noise on the motorway. I suspect this is due in large part to the tyres.
It's currently running OEM 19 inch AMG wheels (full details below) and I'm considering buying some 18" wheels to try and improve the situation. However, I don't fully understand the numbers and want to make sure I don't buy the wrong ones!!

At present they are -
Front: 19 x 8.5, ET34.5 running 255/35 p zeros
Rear: 19 x 9.5, ET48 running 285/30 also p zeros.

To fit the hubs, what specs do I need to keep the same in my new 18" wheels?

....or am I wasting my time and money 'cos it won't make much difference?

MANY thanks in anticipation of your advice.

Nick
 
To go down to 18" wheels with the same ET and diameter you would need the following wheel and tyre sizes.

Front 18x8.5 ET34.5 255/40R18 tyres Rear 18x9.5 ET48 285/35R18 tyres.

The ride will be slightly softer than your current 19" wheels, but you really need 17"wheels to feel the benefit and they would look small in the arches.
That is a lot of expense (new rims and tyres) for a slightly softer ride.

Mercedes-Benz Fitting Chart and Wheel Fitment Guide | Alloy Wheels Direct
 
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