[Beartato]

So I've been thinking of getting a lightweight square set up for tracking and whatnot. I didn't see a concise "will they fit?" style thread standard to car forums so I'm just going to ask: Will Enkei RPF1s that are 18x8.5 fit on an otherwise stock M235i?

http://www.amazon.com/18x8-5-Enkei-S..._encoding=UTF8

I've ran the numbers with a sweet online calculator and the rears should be noproblemo the fronts seem iffy.

Front:
http://www.willtheyfit.com/index.php...culate#content

Rear:
http://www.willtheyfit.com/index.php...culate#content

I can fit my index finger knuckle between the strut and the rim, which is about 10mm based on the super scientific method of holding it to a 10mm socket. For the fronts it says the new wheels would be 7.7mm closer to the strut. Would I need spacers? ~2mm of clearance seems short. In my head if I put 10mm spacers all around they'll fit but it'll be pushing the fenders.

Any input is appreciated.

On a side note I'm surprised there wasn't already something like this on the forum, Enkei RPF1s aren't exactly obscure.

[Kenetic]

If you are on stock suspension this should work. You would only be poking 17.7mm more in the rear which is less than 3/4 of an inch. I have not measure yet but it def looks like theres more than an inch gap.

[ocN55]

Looks like 18x8.5 ET40 right? That all around should work no problem.

[Beartato]

18x8.5 ET40, yes. I was just reading through the VMR wheel thread and it seems people are running 19x8.5 ET40 fine, which is reassuring.

What throws me off is Tirerack sells the Enkei RPF1s but they don't list them for the M235i as fitting.

[OpenAir]

I have about 3~4mm gap between the wheel/tire and the strut...so far so good!

[kd0t]

I was thinking of these wheels as well. Except with the high offset RPF1s, the spokes stick out past the "lip" of the wheel. Looks kind of weird in my opinion

[Anthony235]

Originally Posted by kd0t

I was thinking of these wheels as well. Except with the high offset RPF1s, the spokes stick out past the "lip" of the wheel. Looks kind of weird in my opinion

Actually for RFP1 it's not the offset the determines spoke poke. It's the width.

You have to get 9"+ wide to get the flat spokes. I agree they do not look good at all with the spoke poke.

I've had like 3 sets of them

Probably the best bang for buck wheel out there in regards to weight/quality/price.

[Beartato]

^ they do seem like a good value. I can't find any pictures that show the spoke poke, do you have an example?

The best I could dig up was an example picture from a group buy for RPF1s that're 18x8.5 ET40 5x108



Looks fine to me.

Originally Posted by OpenAir

I have about 3~4mm gap between the wheel/tire and the strut...so far so good!

What size tire/wheel?

[OpenAir]

Originally Posted by Beartato

^ they do seem like a good value. I can't find any pictures that show the spoke poke, do you have an example?

The best I could dig up was an example picture from a group buy for RPF1s that're 18x8.5 ET40 5x108



Looks fine to me.


What size tire/wheel?

OZ Leggera HLT 18x8 et45 running DWS06 235/40/18 square.

[Beartato]

Originally Posted by OpenAir

OZ Leggera HLT 18x8 et45 running DWS06 235/40/18 square.

Ah. With the calculator it puts you 6.3mm closer to the strut. So no rubbing at all, front or rear? No spacers? Stock suspension?

I found them in black, which will save me the cost of painting them.

http://www.autohance.com/enkei-37988...es-wheels.html

[ocN55]

Originally Posted by Beartato

18x8.5 ET40, yes. I was just reading through the VMR wheel thread and it seems people are running 19x8.5 ET40 fine, which is reassuring.

What throws me off is Tirerack sells the Enkei RPF1s but they don't list them for the M235i as fitting.

Don't trust Tirerack, they have so much information that it's hard to get it all right. The 18x8.5 et40 will work

[Anthony235]

Originally Posted by Beartato

^ they do seem like a good value. I can't find any pictures that show the spoke poke, do you have an example?

The best I could dig up was an example picture from a group buy for RPF1s that're 18x8.5 ET40 5x108



Looks fine to me.


What size tire/wheel?

Unless they changed something in the design those are not 8.5".

Here is a <9" wide rpf1. You can see the spokes poke out. I used to run a square setup on my s2000, but they were 9" so I didn't get the poke

[OpenAir]

Originally Posted by Beartato

Ah. With the calculator it puts you 6.3mm closer to the strut. So no rubbing at all, front or rear? No spacers? Stock suspension?

I found them in black, which will save me the cost of painting them.

http://www.autohance.com/enkei-37988...es-wheels.html

No issues yet...best thing I've done to my car!

[Beartato]

Originally Posted by ocN55

Don't trust Tirerack, they have so much information that it's hard to get it all right. The 18x8.5 et40 will work

Makes sense, they're pushing for OEM sizes and whatnot, not so much for odd fitments.

Originally Posted by Anthony235

Unless they changed something in the design those are not 8.5".

Here is a <9" wide rpf1. You can see the spokes poke out. I used to run a square setup on my s2000, but they were 9" so I didn't get the poke

http://www.trackhq.com/forums/attach...photo.jpg.jpeg

I'm ok with that.

Originally Posted by OpenAir

No issues yet...best thing I've done to my car!

Sounds good.

Think I'll order soon.

So stupid question, will OEM center caps fit in the center cap hole on these? I figure with a blatant BMW size cut something BMW OEM will fit but I'm not sure.

[OpenAir]

Originally Posted by Beartato

Ah. With the calculator it puts you 6.3mm closer to the strut. So no rubbing at all, front or rear? No spacers? Stock suspension?

I found them in black, which will save me the cost of painting them.

http://www.autohance.com/enkei-37988...es-wheels.html

Correct, I was worried also and started a thread surrounding the same worries.

[JoeyF228]

I started looking at these too, i have 1 set i can get my hands on for a good price if somebody wants them.

They show the 18x8.5 +38 NT03m also, same issue with the RPF1 though of it not looking as nice in the narrower sizes. Somebody buy them so we can check it out!

[Beartato]

Originally Posted by JoeyF228

I started looking at these too, i have 1 set i can get my hands on for a good price if somebody wants them.

They show the 18x8.5 +38 NT03m also, same issue with the RPF1 though of it not looking as nice in the narrower sizes. Somebody buy them so we can check it out!

Working on it, deciding on the tire to buy. I wish Tirerack sold Federal tires, it'd simplify things. I want some Federal 595RS-Rs in 235-40/18s.

[JoeyF228]

Originally Posted by Beartato

Working on it, deciding on the tire to buy. I wish Tirerack sold Federal tires, it'd simplify things. I want some Federal 595RS-Rs in 235-40/18s.

The tire i want isn't available in 235/40R18 yet, the Nitto NT555G2.

TireRack has some new Kumho that have pretty good reviews, i think its the PS91. it has checkered flags on it like the Pilot Super Sport and the 3 reviews are from 2 BMW owners and 1 porsche owner. Looks to be pretty sticky and solid value.

Already ordered the wheels?

[Beartato]

Originally Posted by JoeyF228

The tire i want isn't available in 235/40R18 yet, the Nitto NT555G2.

TireRack has some new Kumho that have pretty good reviews, i think its the PS91. it has checkered flags on it like the Pilot Super Sport and the 3 reviews are from 2 BMW owners and 1 porsche owner. Looks to be pretty sticky and solid value.

Already ordered the wheels?

Not yet, still deciding on tires. I'll have to check those out.

[Beartato]

So I've got a stupid question before I order, when going with a square set up do I need spacers in the back?

While I don't imagine BMW would change the hub placement for a car that's stock with the staggered set up, and my winter wheels seemed to line up fine, just wanted to ask in case I missed something.

[goodNIGHT]

Just installed Enkei Raijin 18x8.5 et38 with 255/35 dunlop direzza zii in the rear.. no problems. And the direzza's have very square shoulders. There is the smallest amount of poke in the rear.
But no spacers were needed.

[Beartato]

Well I ordered the Enkei RPF1 18x8.5s rocking Sumitomo HTR Z III 235/40-18s from Tirerack, should be here tomorrow. Wish me luck.