05-22-2020, 01:04 PM | #221 | |
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05-22-2020, 01:12 PM | #222 | |
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05-22-2020, 01:15 PM | #223 |
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But it's bad practice to be so close on the specs that it comes down to the exact tire you choose. The vast majority of guys that want aftermarket wheels want the same tire, with the same near-flush fitment, and the same minimal drop, and M2 or M2C-specific wheels should (you would think) be made to accomplish that with a minimum of effort.
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05-22-2020, 02:48 PM | #224 | |
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05-22-2020, 03:03 PM | #225 |
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No, I want the widest tire that will fit without having to jimmy around and run the risk of rubbing everything. You can go wider than stock without running into these issues if the specs are right and chosen thoughtfully. There is no difficulty in pleasing everybody in this situation. This is how you do it: Offer a baseline wheel and tire set up that will work for the majority of M2C owners that would be a set up that works for stock ride height and stock camber. Then offer a secondary, more aggressive set up meant for those that are okay with potential rubbing and/or having to fit spacers/camber plates to work. You simply cannot be serious in offering a M2C specific set up that either rubs or will require camber plates and/or spacers in order to fit. That's amateur league.
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05-22-2020, 05:13 PM | #226 | |
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Hi tokki, You brought up some fair points in regard to our M2C 19” EC-7 wheels, and I would be more than happy to offer some insight and clarity on the subject. First off, APEX is a performance-oriented company. We strive to create wheel fitments that are able to maximize the capabilities of a given chassis by supporting desirable tire sizes in a variety of popular tire compounds. In the case of the M2 Competition, the factory wheels are 19x9” and 19x10”, respectively. When we initially began the development of our M2C-specific 19” EC-7 wheels, we looked into how we could improve upon the factory wheel and tire sizes to best meet the demands of the owners who enjoy “spirited diving” and more specifically HPDE’s (high performance driving events). If we were to offer aftermarket wheels in the same widths as the factory setup, there would be little value added to the community, and no real motivation to upgrade from their factory wheels other than a change in aesthetics. When we approach a new project at APEX, the first question we ask ourselves is, “what is the pain point the customer or community is experiencing?”. Since 18” wheels cannot possibly clear the massive M2C brakes, we knew owners would be on the hunt for 19” wheels that could perform and stand up to repetitive abuse on track. Instead of going the easy route and directly copying the widths and offsets we had already mapped out for the 18” M2 (non-Comp) wheels we released years prior, we brought an M2C in-house to perform extensive fitment testing. This is what led to the change from 10.5” ET40 to 10.5” ET45 for the 19” rear wheels to ensure proper fender clearance. As our OP states, these 19” wheels are versatile in the sense that they can be used in two configurations depending on the driver’s priorities, tire goals, and overall personal preference: 19x9.5” ET28 square, and the more popular 19x9.5” ET28 / 19x10.5” ET45 stagger. Our staggered fitment has a 1” delta from front to rear just like the factory wheels, however, the wider widths will better support wider compounds enthusiasts often desire. A 9.5” wheel is favorable over a 9” wheel in both scenarios, as it reduces understeer and improves turn-in by supporting wider front tires in the staggered setup, while also offering enough width to perform well in a rotatable square configuration (9” wheels front and rear would not be ideal). To be clear, these fitments will not require any spacers with stock suspension, and it would be quite rare that negative camber is needed. I should also note that we used (265 / 295) Toyo R888R r-compound tires in our staggered test fitment, which are known to run a bit wider than your average summer tire. This means enthusiasts should expect even more inner and outer clearance when running a popular street tire like a Michelin PS4S. With all that being said, there are a number of contributing factors that affect clearance as others have mentioned. Thin front spacers may be needed if a customer is running an aftermarket suspension that reduces inner suspension clearance due to the larger silhouette or extended spring stack height (location of the lower spring perch). Suspensions known to impede wheel and tire clearance include KW coilovers, M Performance Suspension (rebranded KW), Ohlins Road & Track, and a few others. Height adjustable sleeve kits are known to be the worse out of the bunch. If 5mm spacers are used, effectively lowering the offset to ET23, then it is possible that a small amount of negative camber is required to clear the fenders upon suspension compression. For enthusiasts running these suspension types that do not want to run spacers and are okay with running a larger stagger from front to rear, we will soon have an EC-7 19x9” ET30 that can be used as a direct fit up front. Looking back at our OP, I think we created some confusion by adding an asterisk on the fitment chart stating that negative camber was a requirement up front, and reiterating the same messaging to a degree below in our written material. We will be updating that chart and the written text below to avoid confusion going forward. Although the 265 R888R mounted on the 9.5” ET28 wheel did not rub or cause any fitment issues on our test run, we recognized that we needed to play it safe as many enthusiasts would be putting this setup through its paces on the race track where hoping berms and major suspension compression is at play. Today, with more miles logged on these wheel and tire configurations without modifications necessary from a variety of enthusiasts, we have more consistent and accurate data to go off of. We appreciate the discussion, and I hope my response brings more clarity in regards to these fitments, and on how we approach projects like this at APEX.
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06-01-2020, 03:12 PM | #227 |
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What would be the widest "Square" setup APEX wheels that could be run on an M2C with Ohlins without going too crazy on the camber? Will be running camber plates.
Last edited by iBrakeLate; 06-01-2020 at 04:43 PM.. |
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06-02-2020, 02:13 PM | #228 | |
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Our recommended square setup for the M2C will be the following 19" EC-7 fitment: Front & Rear: 19x9.5" ET28 with 265/30-19 tires -Available in EC-7 design only. -Front negative camber may be required, depending on ride height, tire brand and compound. -275/30-19 tires can also fit, but requires additional front negative camber. -At least a 5mm front spacer required with certain aftermarket suspensions. Larger may be needed depending on tire size, brand and compound. With a 19x9.5" ET28 wrapped in a 265/30-19 tire at all four corners, you would need at least a 5mm front spacer and likely touch of additional front negative camber to fit this setup. As an alternative, you can also run a wider 275/30-19 tire with a bit more front negative camber and potentially a larger spacer. The actual camber requirements will be dependent on your specific tire selection and suspension setup. Please let me know if you have any questions. -Geirsen
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06-03-2020, 01:01 PM | #229 |
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The tire selection on the 265/30/19 selection is pretty limited, so that setup goes out the window.
Going need to do more research to see if 265/35/19 and 295/30/19 combo is a possibility with the Ohlins R&T. |
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06-03-2020, 07:52 PM | #230 | |
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07-07-2020, 10:10 AM | #232 |
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Here you go.
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07-07-2020, 06:42 PM | #233 |
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Any updates in production for satin black?
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07-14-2020, 02:59 AM | #238 |
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Anyone had the staggered fitment mounted on a car with Bilstein B16 Coilovers?
Did you need a spacer? Was thinking of just lowering springs but i do think im going to a B16 Chassi instead.. |
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07-14-2020, 02:25 PM | #239 |
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255/275 RE-71R on MCS2WNR, -3.0 of camber. Apex recommended M2C fitment, no spacers.
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07-24-2020, 01:58 PM | #241 | |
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They are in the works for sure but we don't yet have an ETA for them. We hope to have more info soon! -Tom
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08-10-2020, 07:23 PM | #242 | |
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Also if I do add camber, will the BMW camber correction hubs that some folks are putting on their cars do the trick? Thanks APEX! |
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