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C450/C43 Wheel Fitment Guide

 
Old 03-28-2018, 12:27 PM
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update on the spacers situation. the spacer i got in just barely didnt work.

They actually cleared the hub side by 1-2mm but the chamfer on wheel side was 1mm off. So the wheel sat on chamfer by 1mm and not flat on spacer.

I talked to the company and they say they will redesign but said as long as there is no vibration, just to use them. I think not. I am not driving at triple digit speeds with improperly seated wheels. so anyway, most people buying these would not even notice 1mm off and so most prolly dont know its potentially dangerous.



anyway, my current plan is to go back to the H&R special 12mm spacer and just cut the top off. i will use 2 wheel hangers to mount each wheel so the clamp load is great enough before I set the car down.

will let you know how it goes when the spacers go on in a few weeks for the summer
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Old 04-06-2018, 04:06 PM
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Hello guys,
I currently have the stock 18in 5-spoke oem wheels on all-season content. Iíll be using HR vtf springs on my 2017 c43 sedan. Will I need anything else other than spacers? Iím thinking 15mm front and 20mm rear. Iím a total newbie. I followed this thread closely and was hoping to upgrade to 19in wheels but i think I should get the 18in to work first. Ty!
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Old 04-06-2018, 04:27 PM
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You don't 'need' spacers but my reco on the stock 19s is 10mm front, 15mm rear or aggressive at 15mm front, 20mm rear. I'm not sure how that compares to the 18" wheels though, I'm not sure what width/offset those are.
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Old 04-08-2018, 02:54 PM
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Originally Posted by CClement View Post
You don't 'need' spacers but my reco on the stock 19s is 10mm front, 15mm rear or aggressive at 15mm front, 20mm rear. I'm not sure how that compares to the 18" wheels though, I'm not sure what width/offset those are.
Yes, what I meant was which offset will it look Ďokí on lowered car for 18in. I am confused about offset and fitments in general. As long as spec is same as factory 19in, it fits and adding spacers only affect stance(how it looks) as long as rim+tire clears the fender. Am I correct?
For offset, letís say et48, adding 15mm spacer should make it et63 but why people subtract instead of adding, et33? The distance from brake, by adding spacers, it increases the distances so offset should increase.
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Old 04-08-2018, 03:01 PM
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Look at this, will answer all your offset questions.

https://www.1010tires.com/Tools/Wheel-Offset-Calculator
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Old 04-08-2018, 11:11 PM
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Will this setup work on H&R vtf lowering springs?
BBS CIR 2004 19 x 8 et44 235/40/zr19 Michelin PS4S
(Front) **Requires a 10mm hub-centric spacer and longer lug bolts. The final offset of the wheel will be reduced by 10mm using this spacer. BBS CIR 2201 19 x 9 et42 265/35/zr19 Michelin PS4S (Rear)
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Old 04-09-2018, 07:06 AM
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Originally Posted by Yoyo43 View Post
Will this setup work on H&R vtf lowering springs?
BBS CIR 2004 19 x 8 et44 235/40/zr19 Michelin PS4S (Front) **Requires a 10mm hub-centric spacer and longer lug bolts. The final offset of the wheel will be reduced by 10mm using this spacer. BBS CIR 2201 19 x 9 et42 265/35/zr19 Michelin PS4S (Rear)
You would need a 15mm spacer upfront. The rear should be healthy.
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Old 04-09-2018, 11:42 AM
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Originally Posted by alexasa View Post
You would need a 15mm spacer upfront. The rear should be healthy.
So my installer suggested to downsize on the tire. 225/40 front and 255/35 rear. What do you think?
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Old 04-09-2018, 05:28 PM
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Originally Posted by Yoyo43 View Post

So my installer suggested to downsize on the tire. 225/40 front and 255/35 rear. What do you think?
That's going to help but the look isn't going to be great because the front will be rather sunk it and you still run the risk of inner suspension clearance.
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Old 04-09-2018, 07:37 PM
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Originally Posted by alexasa View Post
That's going to help but the look isn't going to be great because the front will be rather sunk it and you still run the risk of inner suspension clearance.
I assume your talking about 10mm spacer correct? I did compare the tire differences and itís barely any different between them.

so hereís the final setup
19x8 et44 235/40r19 +15mm spacer
19x9 et42 265/35r19 no spacer
i hope I didnít miss anything. Itís about $4k+
Thanks for the help guys! Cheeers
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Old 04-11-2018, 04:22 PM
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Originally Posted by Yoyo43 View Post


I assume your talking about 10mm spacer correct? I did compare the tire differences and itís barely any different between them.

so hereís the final setup
19x8 et44 235/40r19 +15mm spacer
19x9 et42 265/35r19 no spacer
i hope I didnít miss anything. Itís about $4k+
Thanks for the help guys! Cheeers
Front should be ok like this, same with rear. You will not be sitting flush though.
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Old 04-12-2018, 05:51 AM
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Originally Posted by threefirs View Post


Front should be ok like this, same with rear. You will not be sitting flush though.
Why do you say this? You really don't seem to know what you are talking about.
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Old 04-12-2018, 08:20 AM
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Originally Posted by Yoyo43 View Post


I assume your talking about 10mm spacer correct? I did compare the tire differences and it’s barely any different between them.

so here’s the final setup
19x8 et44 235/40r19 +15mm spacer
19x9 et42 265/35r19 no spacer
i hope I didn’t miss anything. It’s about $4k+
Thanks for the help guys! Cheeers
Originally Posted by threefirs View Post
19x8.5 +32 on 235/40/19
19x9.5 +45 on 265/35/19

Stance SF01 on Michelin PS4s lowered on H&R Springs

Your set-up will be similar to this. The offset is not AS aggressive, let me explain.

The front will be 3mm less aggressive than the set-up pictured above, which is running the same tires as you will but on a wider rim. That means the top of the tire is being pulled in slightly more than the set-up you will be running which will, more or less, make up the difference in offset you see above.

The rear is the same situation. It is 3mm less aggressive than the set-up pictured above, but the tire will be more square, more or less, making up for the difference in effective offset. Ontop of that, the front and rear will be fairly evenly spaced as long as you're not trying to slam the car (the lower you go the more natural camber will set in, pushing the top of the tire in and the bottom out, making it appear less aggressive.

The tires will also be nice and meaty, especially with the PS4S, so you want to be somewhat less aggressive than somebody with a mild stretch on the tires to ensure you will not rub on the fenders.
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Old 04-12-2018, 08:38 AM
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I was running 19x8 et30 w/ 245 (hankooks which run a lot smaller than a PS4S width wise - a 235 PS4S is going to fit like this 245 hankook) and you're going to be running 19x8et29 w/ 235. Your car will be lowered which will tuck the wheels in about 5mm (roughly and will depend on how low and if you intend of getting adjustable control arms), but your offset is 1mm more aggressive. You could potentially run a 20mm spacer upfront, but I think the 15mm is a good and safe starting point. Something like a 17.5mm spacer would probably be perfect, but at that rate I'd probably want to run a 5mm in the rear (personally I like the wheels to look similarly meaty and aggressive to sit flush with the fender to match front and rear).

If you want to push the boundaries and have something extremely aggressive, then that can be recommended as well. However, I will always recommend something that will work before I will tell someone to run something that is not verified to work and could potentially cause problems for the end user. It depends on what your commitment level is and if you're open to rolling fenders, getting different spacers and even to a larger degree different tire sizes. You can tweak fitment almost endlessly but this set-up will be user friendly, won't throw an insane amount of debris down the side of the car and won't rub on the fenders or inner suspension.

Last edited by alexasa; 04-12-2018 at 09:08 AM.
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Old 04-12-2018, 09:17 AM
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so here’s the final setup
19x8 et44 235/40r19 +15mm spacer
19x9 et42 265/35r19 no spacer

First of, I'm on VTFs as well. (I can't remember my settings but I'm on the least drop in the rear and about halfway down on the fronts for a nice slight positive rake).

This should be absolutely perfect in the front. I run 19x8 et40 +10mm spacer on 225s so you will have about the same setup, maybe 1mm further out
and for fronts, I think this will be pretty much perfect. You *could go to a 20mm but I think you'll be happier with the look of with the 15mm spacer.

As for the Rear you'll be almost perfect, I run the same 19x8 et40 +10mm spacer on 255s and I'm super flush. Without the spacer, you should be about
perfect here as well. It will appear a little less 'tucked' than the fronts but I always prefer when the rear sits a touch more flush than the fronts, say 5mm.
The only thing I don't know for sure is your clearance on the rear. I believe there is alot of room back there so I don't think an issue but can't say for sure.
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Old 04-13-2018, 10:29 AM
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Iím going with 225/40 and 255/35 tires. I thought about the width. Mine is 8Ē, so itíll stretch less. Iíll be using 15mm spacer up front and none in the rear.
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Old 04-13-2018, 12:17 PM
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Originally Posted by Yoyo43 View Post
Iím going with 225/40 and 255/35 tires. I thought about the width. Mine is 8Ē, so itíll stretch less. Iíll be using 15mm spacer up front and none in the rear.
Personally, I'd want to run a 20mm upfront and a 5mm in the rear with those smaller tire sizes. The set-up you are looking to run will be fine but with the drop it's going to camber the wheels in and create more space. I also don't think I could justify the spend point and have to run spacers at the same time.

But, that set-up will be good lowered or not, won't throw debris at your car and won't rub on any inner suspension.
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Old 04-14-2018, 11:49 AM
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Anyone have experience running Vorsteiner VFF 103s?
I can get a 8.5 5x112 for fronts ET 45 (assuming would need to run 15 spacer to bring ET to 30).
Reat option is 9.5 5x112 ET 37 or 46. I think the 46 will work fine.

thoughts?
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Old 04-14-2018, 02:56 PM
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Update on spacer situation.

Had a chance to machine the 12 mm spacers to make them 100% perfect.

I am using these spacers

H&R
24556659
https://www.ecstuning.com/b-h-and-r-...pair/24556659/



They fit Hub side perfect. THe issue was the Hub portion extended too far and would hit the center cap on the wheels causing the spacer to dent. For most people and daily drivers, this would be fine. But for me, i track the car so this would get very hot and transfer the heat to the center cap thus melting it. SO i put the spacers in a lathe and took down the hub to 13mm tall which is perfect!

Will be mounting once it stops raining!













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Old 04-16-2018, 06:17 PM
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Originally Posted by alexasa View Post
Some off the shelf 19 inch wheels options that would fit great! Options open to just about anything with some spacer usage.

Stance SC-9 by Stance Wheels
19x8.5 et32
19x9.5 et48
(Stance has a few other styles that will work too, however I cannot recommend 19x8.5 et35 without checking brake clearance with a template (for instance Stance SC-1 by Stance Wheels)

Two wheel choice by TSW in this fitment: 1. TSW Bathurst Rotary Forged by TSW Wheels 2. TSW Geneva by TSW Wheels
19x8.5 et32
19x9.5 et39
(would recommend the car be lowered and running OEM tire sizes)

Two more from TSW in this fitment: 1. TSW Interlagos Rotary Forged Wheel by TSW Wheels 2. TSW Nurburgring by TSW Wheels
19x8.5 et32
19x9.5 et41
(better off running OEM tire sizes so the rear tucks in)

Two wheels by Vorsteiner in this fitment: 1. Vorsteiner V-FF 107 Carbon Graphite by Vorsteiner Wheels 2. Vorsteiner V-FF 103 Carbon Graphite by Vorsteiner Wheels
19x8.5 et35
19x9.5 et46
(verified that 19x8.5 et35 clear brake calipers in the V-FF 107)

5 options from Vossen in this fitment: 1. Vossen CV3-R by Vossen Wheels 2. Vossen CVT by Vossen Wheels 3. Vossen CV7 by Vossen Wheels 4. Vossen VFS-1 by Vossen Wheels 5. Vossen VFS-2 Silver Polished by Vossen Wheels
19x8.5 et30
19x10 et55
How about HRE FF04'S? I just ordered a set and the specs are:
19x8.5 Front ET 47
19X9.5 Rear ET 45

HRE Recommends a 20mm spacer for front bringing ET to 27. I'm wondering if a 15mm spacer will work, since i'm already running a 15mm H&R spacer on the stock wheels?
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Old 04-16-2018, 08:14 PM
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Originally Posted by W205C43AMGCoupe View Post
How about HRE FF04'S? I just ordered a set and the specs are:
19x8.5 Front ET 47
19X9.5 Rear ET 45

HRE Recommends a 20mm spacer for front bringing ET to 27. I'm wondering if a 15mm spacer will work, since i'm already running a 15mm H&R spacer on the stock wheels?
15mm spacer wonít be enough if youíre running 235/40/19 PS4s.
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Old 04-16-2018, 09:52 PM
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I plan on running 225/40/19 for fronts and 255/35/19 for rears
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Old 04-17-2018, 06:24 AM
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Originally Posted by W205C43AMGCoupe View Post
I plan on running 225/40/19 for fronts and 255/35/19 for rears
Overpriced HRE flow formed wheels only to run spacers and the stock tire size.. I don't get it. What's the point in going with a wider rim if you're not going to run a wider tire? Why pay forged wheel prices for flow formed barrels that can be had for a fraction of the price?

That fit is going to be underwhelming IMO. At stock height the tire stretch will be apparent and lowered you're going to be conservative.

Also, you'll have to get new bolts for the 15mm spacers anyways (conical vs ball seat), so trying to reuse your parts is going to be all for not.
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Old 04-17-2018, 07:08 AM
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Originally Posted by alexasa View Post
Overpriced HRE flow formed wheels only to run spacers and the stock tire size.. I don't get it. What's the point in going with a wider rim if you're not going to run a wider tire? Why pay forged wheel prices for flow formed barrels that can be had for a fraction of the price?

That fit is going to be underwhelming IMO. At stock height the tire stretch will be apparent and lowered you're going to be conservative.

Also, you'll have to get new bolts for the 15mm spacers anyways (conical vs ball seat), so trying to reuse your parts is going to be all for not.
I agree that itís not ideal that spacers need to be used, but unless you go custom, there arenít a lot of options that fit without spacers. Regarding tire size, I chose the standard tire size with wider wheel after looking at pictures to get a visual reference of how the tire would look on the rim. I like the look of a slightly stretched tire and donít prefer a chunky sidewall. Also, Iím lowered so am not as concerned about wheel gap. When you say conservative what exactly do you mean? Your correct on the bolts being different- great point. Thank you.
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Old 04-18-2018, 05:14 AM
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Hello all! I've been following this thread since the beginning and there are a lot of good, very useful information here regarding wheel and tire setup. Thanks Star, for taking the time and effort with all the trial and error, and most of all sharing all the information!

All of the information here are for 19" wheels. So, I just wanted to add in case some are thinking of going with 20's.

My current setup c43 sedan:
20x8.5 +32 offset 245/35 20
20x10 +55 offset 285/30 20
H&R springs
Conti's DWS 06

Fit is perfect and no rubbing. I chose to go with the conti's primarily for the UTQG due to the negative camber of the c43. But, even if you go with michellin pss/ps4s which are wider tires (3-5mm and only the rear) by design, it's still ok.
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