woogs

I am looking at getting a new set of wheels to upgrade my stock 2007 CLK550 17 inch ones.

I was looking at going to 18 inch AMG Replicas. Avoiding 19 because of the large number of potholes in Pittsburgh.

What offset are the OEM wheels? I am assuming an 18 inch 35mm offset wheel will work just fine.

Is 8.5 / 9.5 inch staggered too wide? For some reason I am thinking the OEM ones are 7.5 / 8.5 if I recall correctly from memory.

I do NOT want to use spacers.

dynomite05

Take a look at the wheels and tires sticky. Plenty of wheel info there. 8.5/9.5 is fine and ET35 up front will hit your brakes.

Yidney

Man, learning this offest stuff before deciding on wheels is giving me a headache. You say that ET 35 will hit the brakes on a 550. I've seen that in other posts as well. Why? The stock wheels on a 550 are ET37, so 35 is theoretically 2mm more clearance, not less. What am I missing?

I have read the entire wheels and tires sticky, but thought I'd put this here since traffic in that sticky is light.

781m113

+35 means the wheel actually has 2mm less clearance because it's only 35mm out from the hub mount compared to the stock 37mm of clearance. you could use spacers in the front if you dont have enough brake clearance, but be careful that you have enough steering clearance.

Mka77

Remember the et37 is for a OEM 7.5" wheel. For an 8.5" wheel being an inch wider, the et must be less. 32 is a good number.

Yidney

I get that you have to allow for wider wheels to clear struts, but just on the issue of brake clearance wouldn't 35 be btter than 37? Wes's comment was about brakes, which is what confused me. o

Yidney

I think you may have this backwords. At least I hope you do or I really need to start over.

Mka77

He does.

lowpost

My rims are 35mm and clear my 63 brakes no problem.

dynomite05

I say that because I let a friend with a 550 borrow some wheels with ET35 and he needed spacers up front. I guess I heard him wrong.

Yidney

Actually, this raises an interesting question. Offset tells you everything you need to know about the relationship between the mounting surface and the rim, but dues it really tell you anything about brake clearance? Isn't that governed more by the design of the spokes? I suppose you could have a design where an ET 35 could clear a caliper the size of a watermelon and another design that could clear nothing. Am I right or can one assume that if one 35ET clears they will all clear?

dynomite05

Disregard what I said. I just confirmed with my friend that he didn't use spacers and the fronts cleared. They exact specs were 17x8 ET35. Sorry for the confusion.

lowpost

Correct - I think it totally depends on the rim design. If you have a 35mm rim that's deep with flat spokes - it may not clear the 550/63 brakes or BBKs.

JIST

sorry to bring up an old post but can anyone tell me if these would work on my 07 clk550 AMG pkg .or will they stick out the fender like some ghetto hooptie?
btw i'm stock height
Rim WIDTH- 8.5 Front 9.5 Rear
BOLT PATTERN: 5x112.5 Rear
OFFSET: +47mm Front +42mm Rear
any info would be helpful

Yidney

You've got it backwards. They won't stick out, they will be way too far in. You will need spacers for them to work.

JIST

The funny thing I ran into a similar problem with my old car I had to get 15 mm spacers guess it's the same with this.
Thanks for the input @Yidney

JIST

What size tires guess I shouldda asked I was thinking 235/35\19 f 275/30/19 r
Just trying to avoid any rubbing issues

bb1985

I just bought an 07 CLK550 AMG package and wish I could find 19 inch SL55 amg rims that would fit.... the struggle is real.