[T i h o r]

Originally Posted by ApexRaceParts

The most common bolt-on fitment in 18" ARC-8's would be 18x8.5 et38 with 235/40/18 tires, paired with 18x9.5 et35 with 265/35/18 tires. There are no modifications required with this fitment.

Here is a photo of this exact fitment:



Staggered Fitment
ARC-8 17x9 et30 - 245/40/17
ARC-8 17x9.5 et35 - 275/40/17
* May need to roll rear fenders to fit 275's

- Ryan

Are the front's 245/40 or 245/45?

Your flickr account says it's 245/45 (https://www.flickr.com/photos/apexra...n/photostream/)

I'm not asking to point out a mistake, just asking so I know which tire I should order.

Thanks

[n54SQUAD]

Would like to know this as well , as I just ordered 245/45 .. And just in case i need to change my order ..

[Gennosuke]

APEX ARC-8 17x9

[Ruddigger]

Originally Posted by Gennosuke

APEX ARC-8 17x9

Why the narrow tire when you have all that room in there?

I swapped out my 245/40's for 255/40's. Love it.

[BlackedOutBimmer]

Anyone have a black car on anthracite 19" arc-8s?

[Gennosuke]

Originally Posted by Ruddigger

Why the narrow tire when you have all that room in there?

I swapped out my 245/40's for 255/40's. Love it.

I wanted to run a square setup for the track. I don't have camber plates up front. I can't remember if it was one of David from APEX thread's or one of his PM's that I need camber plates and/or spacers to run something larger up front.

Once I get some camber plates and finish these PSS at the track I plan on going larger and getting some dedicated track tires.

[Expert@ApexWheels]

Originally Posted by orteeze

Wheels fitted. Apex ARC-8 Anthracite 18x9.5 et35 and 18x8.5 et38. Stock ride height of course!

Glad to see you got them installed, they look on point sir!

Originally Posted by T i h o r

Are the front's 245/40 or 245/45?

Your flickr account says it's 245/45 (https://www.flickr.com/photos/apexra...n/photostream/)

I'm not asking to point out a mistake, just asking so I know which tire I should order.

Thanks

Good catch! This specific customer chose to go with 245/45-17 tires up front, and you can really tell just by looking at the photo's - these are thick! We typically advise customers to stick with 245/40-17 which is closer to the correct rolling diameter, but understand that some customer would like the thicker sidewall option. Please note there are implication for going with a taller tire, and some customers may not like the outcome.

- Ryan

[cochran]

Apex Arc-8 18x8.5/18x9.5. Will prob lower soon

[Ruddigger]

Originally Posted by Gennosuke

I wanted to run a square setup for the track. I don't have camber plates up front. I can't remember if it was one of David from APEX thread's or one of his PM's that I need camber plates and/or spacers to run something larger up front.

Once I get some camber plates and finish these PSS at the track I plan on going larger and getting some dedicated track tires.

I have no spacers and no camber plates. I do have m3 front control arms and I'm not very low.

[bjf66]

Are there any photos of EC-7 18x10 ET33 on a non-M E92 rear on a customer car? I've only seen that one photo from APEX's photo shoot, but would like to see more before deciding on this.

Is EC-7 18x10 ET33 the most aggressive track-oriented fitment you can fit in the rear of a non-M E92 without any modification or running camber parts?

Will be running the 18x9 ET31 up front.

[n54SQUAD]

r888

[ApexWheels]

Originally Posted by Karura

Are there any photos of EC-7 18x10 ET33 on a non-M E92 rear on a customer car? I've only seen that one photo from APEX's photo shoot, but would like to see more before deciding on this.

Is EC-7 18x10 ET33 the most aggressive track-oriented fitment you can fit in the rear of a non-M E92 without any modification or running camber parts?

Will be running the 18x9 ET31 up front.

Sure thing, I have some photo's below for your reference. I wouldn't say that the 18x10 ET33 is the most track oriented fitment solely because it happens to be the widest rear application we offer for your chassis. Although wheel width provides us with more sidewall support (that's assuming you are using tires that are properly sized for the wider wheel), there are many other important factors that come into play when choosing a track fitment. In other words, a 9" or 9.5" wheel in a square format may be considered "more track oriented" to some.

Also, the 10" rear wheel option is what you make of it, meaning you will see photo's of staggered fitments utilizing this 10" rear wheel, but the customer has chosen to "stance" the car with a stretched tire, rather then take advantage of the extra wheel width from a performance perspective. 265/35-18 street tires are a direct fit on the rear of the E9X 3 series when matched up with our 18x10 et33 (LCI sedan will need to use our 18x10 et43). 275/35-18 street tires can also fit without modification in some instances, but we typically suggest some negative camber or fender rolling to ensure no rubbing. Whether or not these supporting mods are needed for 275's would really depend on vehicle ride height, tire brand, how much weight is in the car, alignment settings etc. Extreme summer tires and R-compounds typically run wider then street tires, so fender rolling and/or negative camber is a really good idea to ensure proper fitment.

EC-7 18x9" ET31 Race Silver 255/35-18 Toyo R888 tires
EC-7 18x10" ET33 Race Silver 265/35-18 Toyo R888 tires


F: EC-7 18x8.5" ET35 - 235/40-18 street tires
R: EC-7 18x10" ET43 - 265/35-18 street tires



F: EC-7 18x9" ET31 - 235/40-18 street tires
R: EC-7 18x10" ET43 - 265/35-18 street tires


- Ryan

[T i h o r]

Originally Posted by ApexRaceParts

Sure thing, I have some photo's below for your reference. I wouldn't say that the 18x10 ET33 is the most track oriented fitment solely because it happens to be the widest rear application we offer for your chassis. Although wheel width provides us with more sidewall support (that's assuming you are using tires that are properly sized for the wider wheel), there are many other important factors that come into play when choosing a track fitment. In other words, a 9" or 9.5" wheel in a square format may be considered "more track oriented" to some.

Also, the 10" rear wheel option is what you make of it, meaning you will see photo's of staggered fitments utilizing this 10" rear wheel, but the customer has chosen to "stance" the car with a stretched tire, rather then take advantage of the extra wheel width from a performance perspective. 265/35-18 street tires are a direct fit on the rear of the E9X 3 series when matched up with our 18x10 et33 (LCI sedan will need to use our 18x10 et43). 275/35-18 street tires can also fit without modification in some instances, but we typically suggest some negative camber or fender rolling to ensure no rubbing. Whether or not these supporting mods are needed for 275's would really depend on vehicle ride height, tire brand, how much weight is in the car, alignment settings etc. Extreme summer tires and R-compounds typically run wider then street tires, so fender rolling and/or negative camber is a really good idea to ensure proper fitment.

EC-7 18x9" ET31 Race Silver 255/35-18 Toyo R888 tires
EC-7 18x10" ET33 Race Silver 265/35-18 Toyo R888 tires


F: EC-7 18x8.5" ET35 - 235/40-18 street tires
R: EC-7 18x10" ET43 - 265/35-18 street tires



F: EC-7 18x9" ET31 - 235/40-18 street tires
R: EC-7 18x10" ET43 - 265/35-18 street tires


- Ryan

Ryan, if I want the meaty tire look, should I be sticking to the same profile for the front and rear to make it look consistent?

For example, one car you showed went F: 235/40-18 & R: 265/35-18, while the other car went F: 255/35-18 & R: 265/35-18

[dhahlen]

Ryan,

I am on a Pre-LCI E90 335i - looking at ARC-8's

Bilstein B8 Sports
H&R Springs

Debating on the setup, looking to run WITHOUT spacers or fender rolling.

Option 1 (the bolt-on fitment):

Example: http://www.e90post.com/forums/showpo...&postcount=240

Pros: Will work without rubbing or rolling
Cons: Rear is pretty sunken in, front has profile 1 flat face

18x8.5 et38 with 235/40/18 tires
18x9.5 et35 with 265/35/18 tires.

Option 2 (Wider Option):

Example (this is an LCI, mine is pre-LCI): http://www.e90post.com/forums/showpo...&postcount=173

Pros: Wide front and rears, nice moderate flush look, Profile 2 to match rear wheel concavity, no-rub possibly achieved with a 255 rear.
Cons: Rear will need a roll with 265/275, may cause rubbing issues with drop

18x9 et31 with 245/35/18
18x10 et25 with 265/35/18 or 275/35/18

Option 3 (Wider Front over Option 2):

Example: http://i69.photobucket.com/albums/i7...IMG_1696ps.jpg

http://www.e90post.com/forums/showpo...77&postcount=1

Pros: Wide front and rears, nice moderate flush look
Cons: Stretched tire in front, Rear will need a roll, may cause rubbing issues with drop

18x9.5 et35 with 235/40/18
18x10 et25 with 265/35/18

Option 4:

18x9 ET31 with 245/35/18
18x9.5 ET22 with 265/35/18

Pros: Flush look on both front and rear, 9.5 Rear sits inward 3.4mm different than 18x10 and 9.4mm further away from strut
Cons: Rear may require rolling

So far, Option 2 & 4 are the most appealing. Please keep the input coming! Thanks!

[Expert@ApexWheels]

Originally Posted by dhahlen

Ryan,

I am on a Pre-LCI E90 335i - looking at ARC-8's

Bilstein B8 Sports
H&R Springs

Debating on the setup, looking to run WITHOUT spacers or fender rolling.

Option 1 (the bolt-on fitment):

Example: http://www.e90post.com/forums/showpo...&postcount=240

Pros: Will work without rubbing or rolling
Cons: Rear is pretty sunken in, front has profile 1 flat face

18x8.5 et38 with 235/40/18 tires
18x9.5 et35 with 265/35/18 tires.

Option 2 (Wider Option):

Example (this is an LCI, mine is pre-LCI): http://www.e90post.com/forums/showpo...&postcount=173

Pros: Wide front and rears, nice moderate flush look, Profile 2 to match rear wheel concavity, no-rub possibly achieved with a 255 rear.
Cons: Rear will need a roll with 265/275, may cause rubbing issues with drop

18x9 et31 with 245/35/18
18x10 et25 with 265/35/18 or 275/35/18

Option 3 (Wider Front over Option 2):

Example: http://i69.photobucket.com/albums/i7...IMG_1696ps.jpg

http://www.e90post.com/forums/showpo...77&postcount=1

Pros: Wide front and rears, nice moderate flush look
Cons: Stretched tire in front, Rear will need a roll, may cause rubbing issues with drop

18x9.5 et35 with 235/40/18
18x10 et25 with 265/35/18

So far, Option 2 is the most appealing. Thoughts?

Happy to help!

Option 1: Your assessment is correct. although I would not call the rear "very sunken in". A lowered e90 pre-lci on 18x9.5 et35 wheels with 265/35-18 Michelin Pilot Super Sports is a pretty good fitment. Is there room to be slightly more aggressive for those looking for an absolute flush fitment? Sure, but remember this is meant to be a direct bolt-on fitment which will not cause rubbing to the rear fenders. The second we start looking to line the tire perfectly to the inside of the rear fenders, we must keep in mind that every car will require a slightly different offset to achieve this. In other words, the cars alignment, ride height, tire size and tire brand will effect the overall fitment. Even how much weight is in the car at any given time could effect whether or not a setup rubs one day vs. the next. That is why we come up with offsets that work well for the masses, and if a customer wants to move the wheel out by 3mm, 5mm etc., they can use spacers. If you reference the image you linked us to, there is not much room between that rear 18x9.5 et35 and the fender.

Option 2: We have just launched the ARC-8 18x9 et30 profile 3 wheel. Up until this point, the ARC-8 did not have a concave 9" option like the EC-7 and PS-7 designs did. This ARC-8 18x9 et30 wheel will be arriving in-house around late July. In regards to the rear of the car, the 18x10 et25 is not a good application for the e9X 3 series. This 10" wheel was specifically made for e46 M3's and E9X M3's with much wider fenders. Running the 18x10 et25 is possible in the rear, but you would have to either downsize/stretch the tires and/or roll the fenders to prevent rubbing. At that point I would ask my customer what is the point of running a heavier 10" wheel, when you are actually downsizing the tire from the 9.5" option? The point of running a wider wheel, is to achive better sidewall support for a wider tire. In other words, the 18x10 only provides value over the 9.5" option if you can move up to a 275 tire, and that is not going to happen without fender/camber modification. With that said, we do offer a 10" wheel for the e9X 3 series in our EC-7 design (18x10 et33). Notice the offset is higher which allows customers to fit an appropriate size tire.

Option 3: This is not a good fitment for many of the same reasons above.

My ARC-8 recommendations for an e90 pre-LCI sedan or e92 coupe:

Option 1:
Front: ARC-8 18x8.5 et35 profile 1 - 235/40-18
Rear: ARC-8 18x9.5 et35 profile 3 - 265/35-18
* Bolt-on fitment with no modifications required

Option 2:
Front: ARC-8 18x9 et30 profile 3 - 235/40-18, 245/35-18, 245/40-18 or 255/35-18
Rear: ARC-8 18x9.5 et35 profile 3 - 265/35-18
* Bolt-on fitment with no modifications required. Note that 255/35-18 front tires are often used to maximize front end grip and reduce the cars tendency to understeer, but they can rub/scrub the fender liners depending on ride height and tire brand

Option 3
Front: ARC-8 18x9 et30 profile 3 - 235/40-18, 245/35-18, 245/40-18 or 255/35-18
Rear: ARC-8 18x9.5 et22 profile 3 - 265/35-18
* Front is the same from above, but rears are 13mm more aggressive towards the fenders then the rear fitment above. This is for the customer who wants a very flush concave fitment front and rear. Rear fenders will likely need to be rolled to ensure no rubbing

As always, please feel free to call me directly if you would like to discuss fitment in more depth

- Ryan

[WinTheDay22]

Added 7mm and 10mm spacers in the front and rear respectively. No rubbing issues what so ever. Suspension is stock XI which has a higher ride height.

Apex didn't recommend it, but I am happier with flushed result

EC-7 ET35: F 235/40r18 8.5 R 265/35r18 9.5 Aelous all-season tires

[dhahlen]

Originally Posted by Expert@ApexRaceParts

Happy to help!

Option 1: Your assessment is correct. although I would not call the rear "very sunken in". A lowered e90 pre-lci on 18x9.5 et35 wheels with 265/35-18 Michelin Pilot Super Sports is a pretty good fitment. Is there room to be slightly more aggressive for those looking for an absolute flush fitment? Sure, but remember this is meant to be a direct bolt-on fitment which will not cause rubbing to the rear fenders. The second we start looking to line the tire perfectly to the inside of the rear fenders, we must keep in mind that every car will require a slightly different offset to achieve this. In other words, the cars alignment, ride height, tire size and tire brand will effect the overall fitment. Even how much weight is in the car at any given time could effect whether or not a setup rubs one day vs. the next. That is why we come up with offsets that work well for the masses, and if a customer wants to move the wheel out by 3mm, 5mm etc., they can use spacers. If you reference the image you linked us to, there is not much room between that rear 18x9.5 et35 and the fender.

Option 2: We have just launched the ARC-8 18x9 et30 profile 3 wheel. Up until this point, the ARC-8 did not have a concave 9" option like the EC-7 and PS-7 designs did. This ARC-8 18x9 et30 wheel will be arriving in-house around late July. In regards to the rear of the car, the 18x10 et25 is not a good application for the e9X 3 series. This 10" wheel was specifically made for e46 M3's and E9X M3's with much wider fenders. Running the 18x10 et25 is possible in the rear, but you would have to either downsize/stretch the tires and/or roll the fenders to prevent rubbing. At that point I would ask my customer what is the point of running a heavier 10" wheel, when you are actually downsizing the tire from the 9.5" option? The point of running a wider wheel, is to achive better sidewall support for a wider tire. In other words, the 18x10 only provides value over the 9.5" option if you can move up to a 275 tire, and that is not going to happen without fender/camber modification. With that said, we do offer a 10" wheel for the e9X 3 series in our EC-7 design (18x10 et33). Notice the offset is higher which allows customers to fit an appropriate size tire.

Option 3: This is not a good fitment for many of the same reasons above.

My ARC-8 recommendations for an e90 pre-LCI sedan or e92 coupe:

Option 1:
Front: ARC-8 18x8.5 et35 profile 1 - 235/40-18
Rear: ARC-8 18x9.5 et35 profile 3 - 265/35-18
* Bolt-on fitment with no modifications required

Option 2:
Front: ARC-8 18x9 et30 profile 3 - 235/40-18, 245/35-18, 245/40-18 or 255/35-18
Rear: ARC-8 18x9.5 et35 profile 3 - 265/35-18
* Bolt-on fitment with no modifications required. Note that 255/35-18 front tires are often used to maximize front end grip and reduce the cars tendency to understeer, but they can rub/scrub the fender liners depending on ride height and tire brand

Option 3
Front: ARC-8 18x9 et30 profile 3 - 235/40-18, 245/35-18, 245/40-18 or 255/35-18
Rear: ARC-8 18x9.5 et22 profile 3 - 265/35-18
* Front is the same from above, but rears are 13mm more aggressive towards the fenders then the rear fitment above. This is for the customer who wants a very flush concave fitment front and rear. Rear fenders will likely need to be rolled to ensure no rubbing

As always, please feel free to call me directly if you would like to discuss fitment in more depth

- Ryan

Ryan, just to clarify, I'm pre-lci. Are the fitment / offsets identical for pre/post lci e90?

[Expert@ApexWheels]

Originally Posted by dhahlen

Ryan, just to clarify, I'm pre-lci. Are the fitment / offsets identical for pre/post lci e90?

Understood, my response was directed towards your e90 pre-lci (which is also the same fitment as the e92). The e90 LCI however has a wider rear track width by 16mm. This means that e90 LCI owners loose 8mm of clearance on each side.

- Ryan

[dhahlen]

Originally Posted by Expert@ApexRaceParts

Understood, my response was directed towards your e90 pre-lci (which is also the same fitment as the e92). The e90 LCI however has a wider rear track width by 16mm. This means that e90 LCI owners loose 8mm of clearance on each side.

- Ryan

Thanks, Ryan. Options 2 and 3 look good, just need to decide on the 35 vs 22 in the rear. I could run a 5mm to bring it to 30, but as I said, spacers not preferred.

The 18x9 is the only profile 3 will under 9.5", yes? Any chance it'll arrive before late July? Looks like only a couple weeks after gb closes.

I'm also considering a 17x9 square option if you have a recommendation - that gb ends in 3 days, may pull the trigger there!

Appreciate all the help!

[Expert@ApexWheels]

Originally Posted by dhahlen

Thanks, Ryan. Options 2 and 3 look good, just need to decide on the 35 vs 22 in the rear. I could run a 5mm to bring it to 30, but as I said, spacers not preferred.

The 18x9 is the only profile 3 will under 9.5", yes? Any chance it'll arrive before late July? Looks like only a couple weeks after gb closes.

I'm also considering a 17x9 square option if you have a recommendation - that gb ends in 3 days, may pull the trigger there!

Appreciate all the help!

You are correct, if you are not satisfied with the look of the et35 option in the rear, but also did not want carry out rear fender modifications to fit the et22, you could run 5mm spacers with the et35 for an effective offset of et30.

Yes, the ARC-8 18x9 et30 is the newest ARC-8 wheel, which allows customers to achieve the profile 3 concave look without having to run a 9.5" or wider wheel. The 18x9 et30 is the slimmest wheel available in the profile 3 face. As mentioned, these wheels are brand new, and will not arrive to our facility until late July.

With that said, we currently offer a concave 9" wheel for the front of your car in the EC-7 design. This would allow you to participate in the 18" EC-7 Group Buy should that be something you want to take advantage of. Keep in mind, the EC-7 is also the only design that offers a 10" wheel for your chassis as well.

EC-7 Options:

Staggered 1:
Front: EC-7 18x9 et31 profile 2
Rear: EC-7 18x10 et33 profile 2

Staggered: 2:
Front: EC-7 18x9 et31 profile 2
Rear: EC-7 18x9.5 et35 profile 2

In regards to the 17" Group Buy, you could certainly run the ARC-8 17x9 et30 square fitment. Most pair this fitment with 245/40-17 tires, but some looking to maximize performance will go with 255/40-17 tires. The front could use a little negative camber with 255's, but many customers have been able to successfully run this as a direct fitment. It all comes down to ride height, tire brand and alignment settings.

- Ryan

[T i h o r]

Ryan, do you guys have any extra pairs of the Arc-8 17"x10" wide rims? I missed the group by and would love a pair for the rear of my '08 e92 335i

[mcmahand]

Ryan, is there any availability on the first ARC-8 18x9 et30 sets? I know you had a group buy a while back I messed out on but still wanting to purchase a set, just need to know timeline.