JKSolomon

Hi Everyone,

I have a 2016 Mercedes Benz C450 AMG. I have cracked four of the factory rims, and decided, when I cracked the fourth, to replace the wheels with Rohana RFX15s. I ordered a set of Rohana RFX 15s with Nitto NT555 G2 tires (entire specs below). When they were mounted, the technician reported that front wheels were locking up because they don't clear the control arms. Anyone have any experience with this that can offer guidance?

Also attaching a few photos that approximate what I am trying to accomplish. These are photos of the same wheels on a W205 C63. When I sized the wheels on Fitment Industries site, the indication was that these wheels would work, so maybe there is some kind of work around needed to fit them? I did expect to possibly have to adjust the camber of the wheels to fit them and to match the photos, and I did mention that to the tech, so not sure where we're going wrong here.

Any help would be most appreciated.

Thanks Everyone!

Josh

(2) RFX152095112BT35 Rohana RFX15 20x9 +35mm RFX152095112BT35
(2) RFX1520105112BT45 Rohana RFX15 20x10 +45mm RFX152095112BT35
(4) 211860 Nitto NT555 G2 245/30ZR20

MaverickC43

There’s a wheel fitment thread on here that will go over a ton of info.
you may get an answer here but u may also get a lot of “do some research on the forums first”

great looking wheels

MaverickC43

What size factor wheels did u have?
20 are big not a lot of guys running them but it can be done

MaverickC43

Same size tires all around?

alexasa

iTrader: (1)

You will likely need a 10mm spacer to clear - this is all clear as day in the wheel fitment thread.

C450 does not share the same front suspension as the c300 - you can not use that as a starting point.

9 inch width really just doesn't work on the c450/c43 - you can make it work but not easy and not without some modifications.

You posted a car on airride? If you are not on adjustable suspension I'm not sure you're going to get anywhere the the specs of the wheels.

JKSolomon

Hi Alexasa,

Thank you for your reply.

I heard back from Rohana and they said I would either need 8mm spacers or get the 25mm offset ones instead of the 35s.

Not sure if the car in the photos is on airride, but my car is not. I did start looking at some kits. Maybe a future upgrade?

I ordered the 8mm spacers and a camber kit. We'll see how those go.

Thanks again!

-Josh

JKSolomon

Thanks! I'll check it out!

JKSolomon

The factory tires were 40Rs but I went down to 30Rs to compensate for the increased wheel diameter. I did do enough research to figure out how to calculate the total diameter of the wheel based on the wheel and tire size and checked that math multiple times. They should fit, diameter wise, in theory, it was just the offset/control arm contact issue that prevented them from working the first time they were mounted. Now I'm just concerned the spacers will push the wheel out too far into the inner lip of the fenders. Might be able to compensate for that by a slight camber adjustment. I did also ask Fitment Industries if they'd swap my wheels for the 25mm offset ones. We'll see...

JKSolomon

Yes, actually. The ones on the back are stretched, but the same size.