[quickxotica]

Originally Posted by quickxotica

I don't think anyone has posted pics of the new forged Sprint line EC-7RS wheel on an F31, so here goes...

Specs: 18x9" ET30 square on stock M-Sport Adaptive suspension w THP. Tires are MPS4S 245/40-18. No mods at all.

Do they poke? Yes, by a few mm, but it looks stock-ish... Just a bit more aggressive. No rubbing and they weigh almost nothing. Happy with 'em.

Quick follow up: Now that my stock 18" Style 398 wheels are off the car, I weighed them (with no tires, centercaps, or valve stems) and was SHOCKED at how heavy they are: 26.55 & 26.9 lbs. each, F & R respectively.

This compares to 18.72 lbs. each for the 18x9" EC-7RS wheels. That's 8 lbs. less un-sprung weight per corner, a reduction of 32 lbs. in total. The improvement is ride quality, bump compliance and overall smoothness is noticeable, even though I was already running non-RFT tires before (& after). Very happy here!

[James T]

Apex ARC-8 18x9.0 ET30 square
245/40/18 Goodyear Eagle F1 Asymmetric 6
Lowered on H&R Sport Springs

[StealthF32]

Arc8
235/40-18 front
265/35-18 rear

[LFoD313]

Awesome thread! Just helped me dial in my selection of ARC-8 Anthracite 18x9 ET30 wheels! Thanks.

Quick question, what brake calipers fit inside these wheels? I have the base BMW brakes on my 440ix w/ M sport package I think. Looking to upgrade my "stop" in parallel with all the "go" I'm adding.

[StealthF32]

"objects may seem closer than they appear"

[ApexWheels]

Originally Posted by LFoD313

Awesome thread! Just helped me dial in my selection of ARC-8 Anthracite 18x9 ET30 wheels! Thanks.

Quick question, what brake calipers fit inside these wheels? I have the base BMW brakes on my 440ix w/ M sport package I think. Looking to upgrade my "stop" in parallel with all the "go" I'm adding.

Every factory brake/m performance configuration on these cars will work with our 18x9 ET30 arc-8, but the 370mm 4 piston kits can't have wheel weights placed in the patch of your front brake calipers as they'll touch the caliper body.

This doesn't include any conversions from the M3 380mm kits.

-Tom

[Xover22]

Arc 8
18x9 et30
245/40/18 Michelin AS4
STXA coils

This thread helped me out a ton with my eventual purchase.

[blau3er]

[Stlblues]

VS5-RS in Anthracite 19X9” +30

[Dagstar]

Just wiped them down because of the rain yesterday. The sun was hitting them just right so I snapped some quick pics. They really don't do them justice as the brushed aluminum finish absolutely gleams in the light. Sometimes I open the front door just for a peak, hehe.

255/40/18 Continental ExtremeContact Sport
18x9 ET30 VS-5RS squared

[pluo616]

Originally Posted by obzen

Mounted the ARC8s today, couldn't be happier from the ride quality improvement > the 19s, the handling is much better and most importantly no Rub! Too bad it's a shitty rainy day and I had my old wheel/tires In the back so I couldn't throw it around.

Here's some shitty pics I'll post better when it stops raining.

18x9 ET30 255/40/18 Michelin AS 4 stock suspension RWD.

Was debating over ec7 or this, but after seeing yours, I am def getting the arc8. Have you lowered it yet? If so, do they rub? Also do you got spacers on them in the pictures?

[obzen]

Originally Posted by pluo616

Was debating over ec7 or this, but after seeing yours, I am def getting the arc8. Have you lowered it yet? If so, do they rub? Also do you got spacers on them in the pictures?

I’m super happy with them. Pics are stock height for rwd and no spacers 255/40 squared. I bet if I lower it It may rub.

If I can go back In time I may consider 245/275 for more aggressiveness and hyper silver so they pop out more. But the black does match my accents.

You can’t go wrong with either of those wheels.

[StealthF32]

Originally Posted by obzen

I’m super happy with them. Pics are stock height for rwd and no spacers 255/40 squared. I bet if I lower it It may rub.

If I can go back In time I may consider 245/275 for more aggressiveness and hyper silver so they pop out more. But the black does match my accents.

You can’t go wrong with either of those wheels.

....when the novelty of the black wears out on you, agreed - - the hyper-silver would be a nice contrast that would pop

[pluo616]

Originally Posted by obzen

I’m super happy with them. Pics are stock height for rwd and no spacers 255/40 squared. I bet if I lower it It may rub.

If I can go back In time I may consider 245/275 for more aggressiveness and hyper silver so they pop out more. But the black does match my accents.

You can’t go wrong with either of those wheels.

nice mine is lowered so will go with 245/40. your car looks amazing btw.

[tajayq]

Picked up a used set from an AWD car. It perfect but for the price I figured I might as well do it.

18x9 +42 with 245/40

Im heavily considering 255/40 or 265/35 for the rears. Guessing based on the offset I might need a spacer but ARC8s are literally my favorite wheels and I’m so glad to have yet another set on my second BMW 😂

[blau3er]

Some new shots of mine.... VS-5RS

[billschonman]

@Dagstar What suspension are you on?

[Dagstar]

Originally Posted by billschonman

@Dagstar What suspension are you on?

KW Street Comfort coilovers.

[blau3er]

[OMG73]

EC7
9x18 et31
9.5x18. et35

PS4
255/40
265/40

[SGoodman23]

ARC-8 18x8.5" ET38 Hyper Silver

Continental ExtremeContact DWS06 Plus 235/40/18

Got a ton of helpful info on this forum

[charlie fairmont]

Originally Posted by Stlblues

VS5-RS in Anthracite 19X9” +30

Looks great. What tires and sizes do you run?