C450/C43 Wheel Fitment Guide
"FAKEAMG" 😌
beautiful set up. I ordered the same set up from uro-tuning. Hopefully it doesn’t take a year for them to arrive. I’m undecided on tire size though. Not sure if I should go 225 or 235 for front. Mine is also lowered on h&r. Can you clear a 235 up front?
The Best of Mercedes & AMG
TLDR: Not making my car perform worse so it looks better to some random people lol.
2019 with stock fitment with cracked 19s.
Looking at a deal on square forged 18s x 8.5 et44
Planning for 12mm spacers in front for effective et32
Rear 8.5 et44 I believe is fine according to this thread.
Would there be any issues with this? Also would appreciate any recommendations for tire sizes. I see stock 18s run F 225/45 and R 245/40.
Quick question, on a standard 2019 C43 S205 Estate (i.e. stock suspension), will the following work: front 245/45/18 tyres on 18x7.5j et31 wheels and rear 275/40/18 on 18x8.5 et49 wheels. I'm looking for wide and chunky tyres for smooth ride and curb protection, and also maintaining equal diameters between front and rear wheels.
Would this work or would the tyre diameters be too big? My Speedo over reads by more than 3% currently, so no issues from that perspective, the larger diameter will make it more accurate. More concerned if tyres will fit the wheels and if there will be any rubbing.
My back up plan is 235/45/18 on front and 255/40/18 on rears , which will offer not much curb protection on the rear (265/40/18 not available on any tyre i want).
I already have 255/35/19 on rear 19x8.5 wheels and the tyre is completely flush, so I feel like 275 will fit wheel ok?
Many thanks!
Last edited by Midlife Driver; Aug 15, 2025 at 11:30 AM.
Quick question, on a standard 2019 C43 S205 Estate (i.e. stock suspension), will the following work: front 245/45/18 tyres on 18x7.5j et31 wheels and rear 275/40/18 on 18x8.5 et49 wheels. I'm looking for wide and chunky tyres for smooth ride and curb protection, and also maintaining equal diameters between front and rear wheels.
Would this work? Alternative is 235/45/18 on front and 255/40/18, which will definitely work but will offer not much curb protection on the rear (265/40/18 not available on any tyre i want).
Many thanks!
I ended up with 235/45 18 front and rear on an 8 inch rim. Offset 30 f and 45 r. BBS replacement TUV approved for the chassis
oe was 225/45 front and 245/40 rear and I cracked ? A rear rim early on
quite happy with it. 45 appears to be the minimum survivable sidewall in the nyc metro area. Car sticks well and of course no issue with equal sizes.
Last edited by speedlaw; Aug 15, 2025 at 09:42 AM.
front: 19x8.5 ET35
rear: 19.9.5 ET35
will I need spacers for this or should they fit fine? Also should I be running 225/255 tires or 235/265 tires? Not lowered, hopefully this fits without spacers, thanks!




I have 8.5" 20" ET30 front wheels with 225/35/R20 tyres. Stock suspension & stock height. I have checked, and although I can't feel or hear rubbing, the inside of both tyres is bald. Is this likely due to rubbing the suspension am, or is it normal for this type of wear?
I am nervous because I have ordered replacement tyres (this time Michelin PS4S), and they appear much wider than my current ones (both old and new are 225). Therefore, the problem could be worse if it's due to rubbing of the arm
Also, does anyone know if sedan and coupe have the same front fitment requirements?
Last edited by BB32; Apr 1, 2026 at 05:46 PM.
wheel part number A2054012000
Fronts are 8.5 19 et38 with ps4s 245 40's, but i intend to switch to tyre 225 40 19
Rear are 9.5 19 et 56 with ps4s 265 35's, but i intend to switch to tyreTyre 255 35 19
Rears seemed to bolt on ok
I tried a 5mm spacer up front but seemed to be a bit tight against the control arm, slight rub
I will fix the chips on them of course :-)
any advice on making them fit,would be greatly appreciated






