Mercedes SLK World banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!
1 - 18 of 18 Posts

·
*Registered
2009 SLK350
Joined
·
218 Posts
Discussion Starter · #1 ·
Yes I've done a search and found some very useful info that 8.5" x 19 et 32 and 9.5 x 19 et 35 clear on the inside, suspension etc. My calculations are that 25 et will be fine on the rear but marginal on the front so I'm wondering if anyone is running a front 8.5 with say 235 tyres and 25 et offset?

I want to keep the wheels in to the body as much as possible to avoid guard interference.
 

·
*Registered
2013 SL500
Joined
·
987 Posts
Difficult to say. When mounted a set of Mandrus rims on mine (Mandrus is focusing on rims for MB), a correct ET on the rears (9,5" x 19", ET 31) didn't clear the calipers. Had to fit a spacer. Now the ET 25 for you on the front works in the other direction (shold be ET 30), so only 5 mm off. But it is known that 235/35 x 19 with 8,5" x ET 30 is on the very, very limit of what you should be able to mount without "rolled fenders". Could work if you use a 5 mm spacer, but then again - will they clear the calipers?

Yes I've done a search and found some very useful info that 8.5" x 19 et 32 and 9.5 x 19 et 35 clear on the inside, suspension etc. My calculations are that 25 et will be fine on the rear but marginal on the front so I'm wondering if anyone is running a front 8.5 with say 235 tyres and 25 et offset?

I want to keep the wheels in to the body as much as possible to avoid guard interference.
 

·
*Registered
2009 SLK350
Joined
·
218 Posts
Discussion Starter · #5 ·
Thanks blokes, wider wheels without going larger diameter are not easy to come by in my country.
 

·
*Registered
2005 SLK280
Joined
·
1,539 Posts
I run a 235 8.5 18" on the front of mine with either a 30 or 35 offset can't remember exactly,clears the suspension and caliper fine👍
 

·
*Premium Member
2013 SLK350
Joined
·
2,196 Posts
Here is my rim/tire setup (see my signature below for the stance)

Front: 19x8.5 ET35, with 235/35 tires
Rear: 19x9.5 ET35, with 265/30 tires

No rubs or caliper clearance issue. I agree with @Swedish Steven, you should stay at +30 or higher ETs to avoid issues. I will say +32 ET should be the lowest offset you should aim for.
 

·
*Registered
2006 Kleemann 55K S8
Joined
·
1,173 Posts
I run 8.5 up front with 32 offset and 235 tires and it is very tight. I have 9.5" with 35 offset and 265's on the back with rolled fenders. I don't rub at all. I might try a 275 in back next time. I know I can't go 245 up front. This is with Michelin PS4s tires, which are wider than most (squarer shoulder).
 

·
*Registered
2009 SLK350
Joined
·
218 Posts
Discussion Starter · #9 ·
Those Mandrus wheels look great but too expensive to ship them to me and a little bit heavy for my application.
 

·
*Registered
2009 SLK350
Joined
·
218 Posts
Discussion Starter · #10 ·
OK, have found some light 8.5x18 and 9.5x18 wheels that will basically fit but the offsets are 45 and 25 respectively. The rears should be OK but I'm a bit concerned about 45 for the fronts. Experiences?
 

·
*Premium Member
2013 SLK350
Joined
·
2,196 Posts
OK, have found some light 8.5x18 and 9.5x18 wheels that will basically fit but the offsets are 45 and 25 respectively. The rears should be OK but I'm a bit concerned about 45 for the fronts. Experiences?
25 in the front won't fit, and likely to rub or not allow caliper clearance. You need +32 or higher.
45 in the rear would work but you may need spacers to bring these out a tad, for the right look.
 
  • Like
Reactions: 260DET

·
*Registered
2006 Kleemann 55K S8
Joined
·
1,173 Posts
Should be 45 offset for the fronts and 25 for the rears :)
That is going to limit your rear tire width. 255 should be doable, but beyond that is probably going to rub. You will need some pretty big spacers on the front.
 
  • Like
Reactions: Col

·
**Premium Member 2012 SLK55 AMG
Joined
·
2,825 Posts
I agree with @jet_fl. Might have to go for skinnier rear tyres and on the front you’ll be looking at using bolt on hub centric spacers somewhere between 10 and 15mm thick. Depending on the design of the rear wheels you may be able to have 10mm or so machined off the hub face to make your offset 35 and enable you to fit 265 or possibly even 275 tyres. Get an expert opinion beforehand but if there’s enough metal there to work with it could be an option.

A better option of course is to find some wheels you like that come with the correct combination of width and offset right out of the box.
 

·
*Registered
2006 Kleemann 55K S8
Joined
·
1,173 Posts
A better option of course is to find some wheels you like that come with the correct combination of width and offset right out of the box.
^ This.
 

·
*Registered
Sold my SLK
Joined
·
69 Posts
@jet_fl What offsets and tire sizes did you ultimately get? I see the 18x8.5 and 18x9.5 wheels in your signature, so it sounds like you figured it out. I'm looking to go with slightly wider 18's on stock suspension.
 
1 - 18 of 18 Posts
Top