sieglo

I’m thinking about replacing the stock 18” wheels on my 2019 C43 so since this seems to be a very common purchase I thought I’d create a thread.

Please pics of your aftermarket rims/wheels, let us know size and specs, tell us where you got them and how much you spent, and how they’ve worked out. Thanks!

MarcusDubya77

https://mbworld.org/forums/c450-c43-...ent-guide.html

GuardianVA

The only problem with that thread, is that it is very long, and not easy to find specs and info. The 1st post in that thread should have been updated to list the wheels, tires, and specs that have been proven to fit. Instead, that info is sprinkled throughout several pages.

alexasa

iTrader: (1)

And anyone trying to fit wheels should read it through. It doesn't take long and you will avoid asking a bunch of questions that are routinely asked and have already been answered. Fitment has not changed since the C450 - and fitment between coupe and sedan are nearly identical.

Anyways. Taking delivery today or Monday of the 2019 but same wheels will go on it.





Above is effectively (after spacer) 19x8 et30 245/40/19 and 19x9.5 et48 275/35/19 - would not recommend this tall of a sidewall, I downsized later which you will see below..

Below is 19x8 et30 235/40/19 and 19x9.5 et48 265/35/19 - this gives a bit more more room for a more aggressive offset.



And the new car shopped on the wheels: I will be trying a 15mm spacer in the rear (that I am currently running in the front, with a 20mm spacer in the front) bringing the effective fitment to: 19x8 et25 235/40/19 and 19x9.5 et38 275/35/19 - at stock height this may be a bit too aggressive - but I do plan to lower the new ride.

sieglo

Good lord, after reading that thread I think I’d rather just buy a new car.

MarcusDubya77

Isn't that what your 2019 is?

Star4life

everyone wants an answer for free with no time put in. so i have to take my time to write a post with a summary, which i already did in the original thread to tell you what will fit. then you will ask about some other wheels outside the summary spec i gave you and i will give you the same answer that it wont fit, you will proceed anyway and then write a post compalining how they dont fit or you will post a picture and people will say they poke and it looks bad and you will justify your decision.

235/40/19 and 265/35/19 for tires. 8j front wheels et33 +- 3, 9j rear wheels et42 or higher depending on flushness you want. but then you will complain no aftermarket wheels are 8 and 9j which there are a few listed in that thread. then you will ask about spacers. also listed in that thread. then you will see the countless pictures and questions people asked about fitment and alexasa has been kind enough to answer them all.

8.5j IMO does not fit our cars. if you insist, the et needs to be 30-32et some people have 28et but i think it looks pokey. if you are lowered take off 5mm from each spec. rear 9.5j can be in the et of 56-48

mau108

Hate to say it but you are incorrect about the 8.5. I'm running Stance SF01 wheels with 19x8.5 up front and 19x9.5 in the rear. Offset for the front is +32 and rear is +45. Front does require a small 3mm spacer. Also running over sized tires, 235/40/19 in the front and 265/35/19 in the rear.

alexasa

iTrader: (1)

On H&R springs? you definitely get a bit more room that way with the natural camber bringing in the top of the tire. 19x8.5 et 29, effectively.

8.5 definitely works but you're typically not going to be able to run the wider tire that the 8.5 width supports. It's hard to recommend as people have varying results and you usually want to be lowered for it to be ideal. People have done it but you ultimately need to be open to some trial and error - and the people asking about this don't even want to read through a thread to make a better informed decision.

I'm kind of in the same boat - I'm not keen on recommending 8.5 but my goals are different than most. I prefer function over form and I like the look of a full tire without stretch. There's no reason for me to, personally, want to go wider than 8 inches on this car on the front axle.

mau108

On KW HAS. But I know someone running the exact same setup on stock C43 suspension/springs so extra camber isn't needed. Speak to a wheel guys that have worked with the w205 chassis, I did and this is the setup I went with.

Love the look, over sized tires eat the bumps.

Star4life

what do you mean by oversized tires? you are running a standard tire size that fits our vehicle. it sounds like you are just restating what a w205 "tire expert" told you. not necessarily a bad thing as you obviously have a working fitment. but as it was stated some trial and error is needed and if you read my comment, for lowered cars you can adjust by 5mm. the camber you are running is probably bringing the top of the wheel in which causes running at 32 et. which is why you needed a 3mm spacer.


i would consider myself an expert on the fitting on the vehicle. and everything i stated still holds true. there is no reason to run a 8.5j on the c43 other than wheel selection is much better with 8.5j than 8j where its hard to find good wheels.

there is no benefit to 8.5j. they are heavier, more expensive generally and tighter clearance. it doesnt allow you to run a wider tire. i do not see a benefit to the 8.5j in our application.

also your fitment looks good. so nice work