Hey guys I am looking to buy a set of rims here asap and need your help...
Will 19x9.5 and 19x10.5 WITH +22 Offset fit my C5?? (235-255 front tires, 275 rear)

I know that if it was +35 offset it would work, so I am 90% sure this will work with +22 but I am not educated enough to know for sure, and I can't buy the wheels if I don't know for sure that they will work.
Hopefully someone can help, i'd really appreciate it

 

All of those wheel spec combos/possibilities will poke out of a stock fender. None of them will "fit" a stock C5.

Since you're also listing pretty narrow tire sizes, I think it's safe to assume you're aiming for a look that's not very supported here. Most active members here prefer as wide of a tire as possible and wheels that fit under the fender. You'll find a lot more support on FB groups for poke/stance setups.

 

I was thinking about this same concern, however after looking at multiple setups and my current 20x8.5 setup I came to the conclusion that 9.5 and 10.5 will hardly poke out of the fender at all and will look fine, especially if you have a flush tire that isn't poking out further than the rim. So this is not a concern for me, nor should it be for anyone unless they are running tires that poke out further than the rim. (my 20x8.5's rims barrel is flush with the fender if not in a little bit).

And unfortunately I am buying used as the exact rims I want are up for a good deal and are basically mint. So right now the fronts are on 235/35's and it looks pretty bad as it is stretched a lot. So I am going to have to buy new front tires, but I figured 255's would be the biggest I could run in front and not rub the inner fender, and 255's on 9.5 is basically the roccemended perfect size...
And as far as the rear 275/30's they fit fine and 275's on a 10.5 rim is completely normal and the perfect size as well...

So I don't get your hate... you think that you cant run 9.5 and 10.5 rears? That is a super common setup with plenty of people running as high as 12.5 rears etc
The stock rims are literally 9.5 with 245's and 12 with 275's

 

Or maybe not, they are 8.5 and 9.5 right? For some reason the first google search that popped up said they were 9.5 and 12, mb.

 

Man, there's a lot going on here...

First, there is no hate from me. You asked for help, I was trying to be helpful. I let you know you wouldn't find much support here for the specs you're talking about and tried to point you to somewhere that would be more helpful.

I don't know where you got the idea that I was saying 9.5/10.5 wouldn't fit or that any C5 came with a 9.5/12 setup. 9.5/10.5 are stock C5Z06 wheel widths and no C5 came with 12" rears from the factory.

How did you come to the conclusion that any 9.5/10.5 will hardly poke out and how are you comparing them to your 20x8.5s? I can promise you without a doubt that a 10.5" +22 will poke out of your rear fender by 1.5". The math doesn't lie. It has nothing to do with it being a 10.5" wheel and everything to do with the offset. A 6" wheel will poke out with the wrong offset.

If the set you are buying is used, what are the specs? You originally asked about two different specs and neither of them are ideal. There's a reason they're running the skinny tires you're talking about looking pretty bad...

 

(Thanks for the help btw)

The top photo is showing how much the rear 275/30 19x10.5 stick out past the fender on a E92 335i (the actual rims I am buying and they are on his car still). So as we can see it is maybe half an inch past and looks completely fine, and im sure the E92 has give or take the same size fenders/overall setup if not smaller than the C5?

The bottom photo is showing how bad the fitment is on the front 235/35 19x9.5's. Which like I said I would need to buy new front tires as I am not ok with that fitment. And I figured 255/35's would be the biggest I could fit without rubbing on the front fender.

Now that you explained that the offset has a big difference on how much it pokes out I totally understand and can see how indeed having less offset will make them poke out more and vise versa.
However like I said I have 20x8.5 with +35 offset (only +13 less than the used rims) on currently and it is flush with the fender if not in a little bit. I would be ok with max like 1 inch sticking out when looking from the top (primarily on the back as it looks aggressive and good, especially with these aggressive deep dish 3 piece rims, but the front like half an inch to 3/4 max id be ok with).
So idk if this is the exact math but at 1 inch wider rims in the front would only add half an inch on both sides compared to my current 20x8.5 setup, then + the 13 offset which would be 7mm on each side? so an extra quarter inch? for a total of 3/4 of an inch poking out.
And with that math the rear would be 1.25 inches more than the current setup.

(I am also going to put these rims on a widebody 350z in like 6-12 months and buy some new Cray Eagle rims for my C5, so I would be fine with going with that fitment for 6-12 months if need be)
(And I came to the conclusion that it would work via searching up c5's with 9.5 and 10.5 setups and they looked good. However now that you explained how big of an effect the offset is I now know it varies a TON based on what offset it is)

 

It's never safe to assume that wheels will fit any car the same way as another car. Looking at "the size of the fenders" has no relevance to how they'll fit an entirely different car.

Please do some reading on how wheel specs work and go from there. I'm glad you understand that offset plays a major role in fitment, but you've really got a lot to learn still. I'm not trying to be rude or hateful, just trying to help guide you in the right direction without having to correct everything wrong in your post when this information is readily available to learn via Google. Yes offset affects fitment, but wheel width needs to be taken into account with offset as well. You can't just compare offset numbers without factoring wheel width. Meaning an 8.5 +35 will fit differently than a 9.5 +35. The outer edge of an 8.5 +35 will sit in the same position as a 9.5 +48.

As a cheat sheet: A 9.5" +50 front and 10.5 +55 rear are pretty flush on a stock C5, give or take a few mm. Just use one of many free online fitment calculators and use those as those your base/before numbers to compare wheels to. The specs you asked about of 9.5 +22 10.5 +22 are more in line with what people run on widebody C5s (1" front, 2" rear). You can see the difference in the numbers right off the bat. How much poke you're ok with is up to you, but it sounds like you're ok with quite a bit. Most of us are not. That's your call.

Are you 100% sure these are 3 piece wheels? They look like BBS LM replicas (one piece cast wheels with fake bolts), which are extremely common, cheap, and popular (especially in the Euro crowd).

 

Obviously I realise that you can't assume it will be the same as the E92. I said the OVERALL SETUP of a E92 should be about the same if not less I would think? Because a C5 is a car that is aggressive american muscle performance car and meant for big wide rear wheels, where as you would think the e9x 3 series should be not as aggressive. But yeah i'm sure even YOU, would not be able to give an educated guess on how similar they are so I guess we'll just throw that comparison out the window....

I do indeed do have A LOT to learn, believe it or not my 2000 FRC is my first car as I waited until 21 to get my first car, and I have only had it for 9 months so far.

So using your quote "cheat sheet" and the calculator it is telling me the fronts will stick out 1.08 inches and the rears 1.27 inches. So this is the real number of how much they will actually stick out right? (+/- how many mm the cheat sheet is off)

And other than how much they poke out I won't have any problems with them fitting right? And do you know what the biggest front tire size would be for a 19x9.5 without rubbing?

I just meant 3 piece as in they are deep dish with rivets/removable face. They are ESR SR05's

Thanks for the help man I really appreciate it

 

do these wheels even have the same bolt pattern?

aren't they 5x120 & not 5x120.65?

 

Yes it is very common practice to use 5x120 though. Endless people do it and my current rims are 5x120

 

I just swapped to 19x10/18x8.5 and went with Nitto NT555 G2 305/35 on the back and 245/40's on the front. 305's fit perfect in the wheel well and are flush with the top arch body line. +56mm offsets on F/R rims

 

True. As heggs posted 10.5 with 55 offset is flush on a stock C5. And you got basically that exact setup

I am pretty sure the number the calculator gave is proper and that will be how much they will poke out, but I have not gotten a confirmation