APEX G42 2 Sequence Check Fitment: 19×9.5 ET25 sq. VS-5RS


As lots of you understand already, a couple of intrepid G42 prospects have opted to run our 19×9.5 ET25 wheels sq. as an aggressive rotatable fitment. Stradale Design documented their take a look at of this setup on their G42 on the next thread: https://g42.bimmerpost.com/boards/sh….php?t=1978825

Whereas this was a implausible preliminary impression of what this fitment was like on the two sequence, we had at all times deliberate to check this setup in-house as properly. Since we would have liked scans of the bigger ZTK brake calipers for one more mission, we dovetailed this testfitment in with an workplace go to used to gather brake knowledge as properly. Fortunately enome was capable of cease by our workplace together with his ZTK-equipped G42 to assist with this take a look at fitment. His in any other case inventory G42 was the right platform on which to check these wider wheels to check towards Stradale’s lowered instance.

The entire last photoshoot pictures featured the next specs.

G42 Specs:

Suspension & Alignment: Inventory

Spacers: None

Wheels: VS-5RS in Satin Bronze

Entrance & Rear: 19×9.5 ET25

Tires: Falken Azenis RT660

Entrance & Rear: 265/35-19


General the entrance fitment seems to be nice, even on the inventory experience top and with the inventory alignment. We’ll contact on the tire mannequin later however this is among the wider 265/35-19 choices in the marketplace. The fitment is aggressive and may poke past the inventory fenders of a non-ZTK automotive, particularly with wider tire fashions. It’s a particularly flush fitment which might be particularly vital if you have to run spacers. Bonus factors for individuals who spot the F87 M2 CS Racing lurking within the background ready for its time to shine…

Entrance Suspension: Strut Clearance

The photograph above exhibits the strut clearances between the wheel and tire and the entrance strut meeting. The large RT660 sits extraordinarily near the strut physique. No tire witness marks or audible rubbing had been famous with this fitment in the course of the photoshoot but when pushed aggressively on the monitor or road, a 3mm spacer could be an excellent addition to forestall the tire from contacting the strut when the tire sidewall flexes and deforms.

Above the tire, there’s room between the tire and the OE spring perch. Aftermarket coilovers or HAS (top adjustable spring) kits that restrict inside clearance due to a decrease spring perch that sits additional down than the OE configuration will want a wider (5-12mm) entrance spacer and extra destructive camber to run this setup.

Entrance Brake Clearances: ZTK and Extra

Clearances had been tight between the entrance ZTK calipers and the VS-5RS spokes, however they did clear with out situation. There’s loads of clearance between the barrel of the wheel and the calipers which is the place street particles and gravel usually tend to sit momentarily and get caught between the parts. General the brake clearances for the 374mm ZTK brakes are acceptable with the VS-5RS however a 3mm entrance spacer would assist construct again that spoke-side margin in the event you’re involved about street particles. We examined the VS-5RS and SM-10 19×9.5 ET25 wheel designs towards these ZTK brakes, the 348mm entrance “MSport” brakes, and the bottom 230i brakes together with all relevant rear brakes and these wheels cleared.


The rear fitment has much less general notes. Simple brake clearance and a ton of inside clearance for these wheels moved our focus to the fender clearance across the higher portion of the tire. General the fitment is as soon as once more fairly flush particularly with the large RT660 tires. No rubbing was famous throughout our testfit, however the automotive was not pushed arduous. Excessive suspension compression and tire flex on monitor may result in fender rubbing with wider tires which may very well be dialed out through alignment adjustment. The ZTK flares assist with visible poke however aren’t a major profit to an in any other case unmodified automotive.

Tire Notes:

Falken RT660s are a superb extreme-performance tire choice that performs properly on monitor. Additionally they run fairly large. Per Tire Rack, the RT660s within the 265/35-19 dimension showcased right here run 10.9” large for his or her part width which is usually the widest level of the tire sidewall. A Michelin Pilot Sport 4s in the identical dimension has a ten.6” part width. When shifting additional right down to the contact patch, the RT660 has an enormous 9.8” tread width whereas the PS4S has a 9.3” tread width. That is the portion of the tire that contacts the street, but it surely’s additionally the a part of the tire we care most about in terms of suspension and fender clearances because it’s this portion of the tire that’s closest to those ache factors. Each of those tires had been measured on a 9.5” large wheel.

The RT660s are wider at each level however are particularly large the place it issues most for us. The Michelins are a reasonably large tire already however they don’t come near the RT660. I typically get requested by prospects what dimension of tire I like to recommend. It is a arduous query to reply due to variances like this throughout the identical listed dimension by producers making an attempt to eke out extra efficiency or chase varied traits. 265/35s make sense right here for a monitor efficiency setup however once more the width and fitment will fluctuate relying on the tire you choose.

Alternate sizes:

Whereas 265/30-19s may very well be used entrance and rear for a barely simpler match, the tire mannequin availability is much better in 265/35-19. A strong collection of monitor tires is on the market on this dimension making it the plain alternative for somebody that tracks their 2 sequence. 255/35-19 has even higher availability than 265 though many of the tires on this dimension are road oriented. You’ll be able to run 255/35-19 for road tires on these wheels, however in the event you needed a straightforward bolt-on fitment, the 255/35-19 may be run on our 19×9 ET25 sq. fitment. As at all times, extra fitments might be discovered on our information right here.

Going Decrease + Observe Alignment: That includes Stradale Design

As we talked about already, Stradale Design is working the identical setup on their G42 construct as documented of their thread. At this level, most of you’ll have seen their thread already, however listed below are some photographs of their automotive on these wheels with Falken RT660s lowered on MSS springs:

As soon as they dialed in some camber, these wheels tucked a bit greater than is showcased right here. In-depth images might be discovered on their thread however we needed to make the most of this uncommon alternative to check and distinction a inventory automotive with a lowered automotive. You’ll be able to see a number of the extra static camber gained from simply from decreasing the automotive at work serving to to tuck the higher fringe of the tire in regardless of the space from the fender to the tire reducing on the identical time.

Aftermarket camber plates are going to be the most suitable choice to dial in extra destructive camber up entrance from a wheel and tire fitment perspective as these will pull the highest of the strut inward and enhance fender clearance on the higher edge. Availability for plates like that is doubtless skinny proper now however as these vehicles grow old extra choices ought to come onto the market.

Remaining Ideas:

General these wheels work surprisingly properly even on a inventory automotive. Narrower street-oriented summer season tires or all seasons would make primarily all points of the fitment barely simpler for road prospects in search of a rotatable sq. fitment however this setup really shines with aggressive monitor tires. We’ve been engaged on and constructing wheels for the 1 and a pair of sequence chassis for years with the E82 and F2X 1 and a pair of sequence and it is nice to see aggressive G42 fitments take form. Homeowners proper now might not be as involved in fitments that require some modifications however we hope this thread helps to present anybody involved in a rotatable sq. fitment for the monitor an excellent new choice. These are additionally essentially the most concave wheels accessible for the G42 2 sequence in our strains presently with an unmistakably deep face profile.

Whereas this thread showcases our Solid VS-5RS, all the identical notes apply to our Movement Shaped SM-10 as properly supplying you with a number of choices at completely different value factors. I’ve been a giant fan of our Movement Shaped wheels for a very long time and whereas the cast wheels are nice, in the event you want a number of units to help a monitor program or wish to save for suspension or HPDE charges, the SM-10s are an excellent choice for any funds.

Even in the event you aren’t contemplating APEX wheels, we hope this showcase helps with notes in regards to the offset and fitment on the G42. In case you are contemplating our wheels, we’ve added this fitment to our guides and each of those wheels shall be occurring our G42 shop-by-vehicle web page shortly.

An enormous thanks goes out to our volunteer enome for giving up your time and lending us your automotive for a couple of hours. We hope to see you on APEX wheels once more quickly. One other thanks goes out to Stradale Design for selecting up a set and letting us use your images.

Tell us what you consider this fitment and in case you have any questions!

-Tom and the APEX workforce

VS-5RS /// SM-10 /// Chassis Particular Information


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