C450/C43 Wheel Fitment Guide
don't want that look. I had that in the rear when I had 15mm spacers and it drove me crazy so I ordered a set of 10mm
ones and now it's perfect. Let me know if you'd like me to take some close-up pics to show.
After doing some calculations on tire diameters and the lust to get wider tires without risking the 4matic f/r ratio. I decided to switch to 19x8.5 +30 offset front, and 19x10 +55 rear. Matched it with 255/35 and 295/30 Michelin Pilot Sport 4s, respectively. I knew the diameter would fit since my 20’s were taller. I’m still on H&R springs and as usual the concern was the suspension up front and the wheel well in the rear.
When I first saw the tires for the rear, I really thought there was no way it would fit in the back. Even the guys in the shop were crossing their fingers, hahaha!
So, to those who dare to drive with these tolerances, I’ll be attaching pics and how the car looks. I do have very slight rubbing on “C” mode on dips, but who ever drives on “C”, anyways, hahaha! Sport+ is preferred mode but still slight rubbing on big dips, and only the fender liners. Nothing touches the chassis and paint. I can say, the tire widths outweighs the slight rubbing.... very negligible.
Wheels: VSForged VS-06, forged monoblock, brushed aluminum.
Fender gap front,
Fender gap rear,
Fender clearance: front,
Rear,
Now to the gnarly part...
suspension clearance: right front,
Left front,
Rear inner fender clearance,
I’m very happy with the results!
I know it’s not for everyone, but I hope this helps anyone willing to go this route...
Thanks to everyone who posted their specs and pics on this thread. I know it helped me a whole lot!
So far the wife and I are really happy with the results and wanted to share another successful option for our cars

Front - BBS CIR 2004 - 19x8 ET44 w/ BBS 10mm Spacer & BBS Lug Bolts
Rear - BBS CIR 2201 - 19x9 ET42 w/ BBS PFS Hubcentric rings & BBS Lug Bolts
Last edited by chan1011; Sep 22, 2018 at 09:22 PM. Reason: Bigger pics
I have purchased Continental ExtremeContact Sport tires in 235/40/19 Front and 265/35/19 Rear.
A tire distributor as well as another member suggests adding a 3mm spacer for front caliper/knuckle clearance. With that 3mm spacer, will the setup look flush ENOUGH? Since I am completely changing the fitment, I might as well adjust stance as well. Will adding a larger offset work if needed? I am not looking for crazy wide stance nor am I able to lower due to snow and ice.
Any help is appreciated, thanks in advance!
edit: Suggestions on spacer and lug bolt brands would be great.
Last edited by jonathan358; Sep 23, 2018 at 12:06 PM.
The Best of Mercedes & AMG
I have purchased Continental ExtremeContact Sport tires in 235/40/19 Front and 265/35/19 Rear.
A tire distributor as well as another member suggests adding a 3mm spacer for front caliper/knuckle clearance. With that 3mm spacer, will the setup look flush ENOUGH? Since I am completely changing the fitment, I might as well adjust stance as well. Will adding a larger offset work if needed? I am not looking for crazy wide stance nor am I able to lower due to snow and ice.
Any help is appreciated, thanks in advance!
edit: Suggestions on spacer and lug bolt brands would be great.
All your specs look good to me... Wheels, spacers and tires should give you a flush fitment.
The only thing I would confirm is if the wheels you are getting have a ball or cone seat. Most aftermarket wheels drill them with cone. If you need to get new lug bolts, I would check out RAD Otis Inc. LA website.
Good luck! And don't forget to post pics, once your setup is complete.
I also wonder if I would need spacers to set up these wheels. Planning this for a winter setup
I'm trying to figure out if I can match 235/35/19 and 265/30/19 instead of 235/40/19 and 265/35/19 on 19x8et30 and 19x9et45 wheels. Reason being so is because Im leaning towards getting the Conti ExtremeCOntact DSW06 all season ultra performance tires
Thanks!
I'm trying to figure out if I can match 235/35/19 and 265/30/19 instead of 235/40/19 and 265/35/19 on 19x8et30 and 19x9et45 wheels. Reason being so is because Im leaning towards getting the Conti ExtremeCOntact DSW06 all season ultra performance tires
Thanks!
Yea, I'm planning to keep stock height (due to the horrible roads and my non-ramp, street curb entrance to my apartment building's garage.
In that case, I might have to opt for slightly thicker sidewalls and wider wheels.
What you guys think of this setup:
19x8.5 with 245/40/19 striving for et29-32
19.9.5 with 275/35/19 et-42-45
would the 8.5 and 245 conti DSW's rub in the front? I know the 245 conti's are as wide as the 235 PS4S..however, I do wish to keep A/S tired because I don't want to deal with switching out rims for the seasons.
Yea, I'm planning to keep stock height (due to the horrible roads and my non-ramp, street curb entrance to my apartment building's garage.
In that case, I might have to opt for slightly thicker sidewalls and wider wheels.
What you guys think of this setup:
19x8.5 with 245/40/19 striving for et29-32
19.9.5 with 275/35/19 et-42-45
would the 8.5 and 245 conti DSW's rub in the front? I know the 245 conti's are as wide as the 235 PS4S..however, I do wish to keep A/S tired because I don't want to deal with switching out rims for the seasons.
Would keep the rolling diameter within ~1.5% of stock and no more. Car felt a bit floaty and steering sharpness decayed.




Also, I know it's somewhere in the bowels of this place but search isn't finding it. Do 265s on stock rears, stock height, stay issue free without spacers?
Also, I know it's somewhere in the bowels of this place but search isn't finding it. Do 265s on stock rears, stock height, stay issue free without spacers?
Because I've read a post here mentioning how the Misano's were not such a great fit, I decided to go ahead and order the Vosso in 19x8.5 and 19x9.5.
Also, because I'm going with performance all season Conti DWS, I'm limited to either 225/40x265/35 or 245/35x285/30...The shop went ahead and ordered the latter.
Should I have opted for 225/265 instead and be +~.5% larger diameter than stock or go with the larger/skinnier tires and be -~1.8% diameter smaller than stock?
Thanks for all your help guys, much appreciated!
P.S. I just realized that the OEM wheel diameter for the 18s is 25.79 and 19s is 26.09. Thus going with the 245/285 combo would situate me much closer ~-0.01% of OEM 18s diameter...
Last edited by tmoneyC450amg; Oct 18, 2018 at 03:23 AM.
Because I've read a post here mentioning how the Misano's were not such a great fit, I decided to go ahead and order the Vosso in 19x8.5 and 19x9.5.
Also, because I'm going with performance all season Conti DWS, I'm limited to either 225/40x265/35 or 245/35x285/30...The shop went ahead and ordered the latter.
Should I have opted for 225/265 instead and be +~.5% larger diameter than stock or go with the larger/skinnier tires and be -~1.8% diameter smaller than stock?
You'd probably want to be at +31 (+/-1mm)
Thanks for all your help guys, much appreciated!
P.S. I just realized that the OEM wheel diameter for the 18s is 25.79 and 19s is 26.09. Thus going with the 245/285 combo would situate me much closer ~-0.01% of OEM 18s diameter...
What's the offset? That's a lot of tire for stock suspension and without it being dialed you'll either poke or rub inner suspension.
I like to upsize diameter on stock suspension to close fender gap, and 225 on 8.5 is a bit stretched for stock ride height. So it's kind of a toss up.
Last edited by alexasa; Oct 18, 2018 at 08:48 PM.
Theyre planning to order the same wheels in et25 to see if it would fit because they installed a Lexani 19x8.5 et25 and said they were fine.
I saw my tires that came in 245/35 and 285/30 and they looked super skinny. I do hope they fill out more when it's pumped up. Even so, the diameter will be 25.73 on the 19s, slightly less than the OEM 18s (25.79). Not sure how that's gonna look
Niche Vosso m203 19x8.5et35 19x9.5et42
Continental DWS 06 245/35/19 285/30/19
Stock suspension
here is what ended up happening:
Attempt #1: supplier sent the wrong offsets for the front (19x8.5 et42) so we ordered in a set with et35 and et25
Attempt #2: et25 was way too aggressive for the front and my installer is very reluctant to use hubcentric spacers so we've decided to custom drill the 5x4.5 bolt pattern with inserts to achieve a 5x112 19x8.5et35 wheel. We added a 3mm spacer for extra clearance from the control arm and added a hubcentric bore ring to fit the 72.5m bore of the wheel.
Here are the results:














Niche Vosso m203 19x8.5et35 19x9.5et42
Continental DWS 06 245/35/19 285/30/19
Stock suspension
here is what ended up happening:
Attempt #1: supplier sent the wrong offsets for the front (19x8.5 et42) so we ordered in a set with et35 and et25
Attempt #2: et25 was way too aggressive for the front and my installer is very reluctant to use hubcentric spacers so we've decided to custom drill the 5x4.5 bolt pattern with inserts to achieve a 5x112 19x8.5et35 wheel. We added a 3mm spacer for extra clearance from the control arm and added a hubcentric bore ring to fit the 72.5m bore of the wheel.
Here are the results:
But glad it worked out for you.
The shop even suggested to grind down the control nub to gain clearance, but I am all against that option.
We'll see..I'll have to bring it in tomorrow because I just took some closer pics this morning and it certainly feels tight in there, about 1mm of clearance if not less...it's enough to fit a ID card and that's about it. I can squeeze the id card in between the wheel and the control arm, and it will stay there.
I hope a 5mm spacer will solve the problem
I might just go for a whole different wheel just so I can use a properly sized spacer or one that doesn't require spacers at all.






