APEX Wheels | Forged Wheel Development For 718 GT4 & GT4RS
02-28-2022, 07:26 PM
#31
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Thanks Ryan, that makes sense for the 8.5" size, so for the 9" wide front as it is about 12mm wider would it be correct that some of that additional width shows up on the outside and the balance on the inside because of the ET 50 offset?
If I am looking at this right you would still the room for the spoke design you describe and clearance from suspension on the inside with the wider front wheel?
If I am looking at this right you would still the room for the spoke design you describe and clearance from suspension on the inside with the wider front wheel?
03-04-2022, 07:03 PM
#32
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Kelvin's Stunning Miami Blue 718 GT4
19" VS-5RS in Brushed Clear
Front: 19x9" ET50 - 255/35-19
Rear: 19x11" ET45 - 305/30-19
Bridgestone RE-71R Tires
- Ryan
19" VS-5RS in Brushed Clear
Front: 19x9" ET50 - 255/35-19
Rear: 19x11" ET45 - 305/30-19
Bridgestone RE-71R Tires
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APEX Wheels - expert@apexwheels.com
Website - Blog - Instagram - Porsche Fitment Guides
APEX Wheels - expert@apexwheels.com
Website - Blog - Instagram - Porsche Fitment Guides
03-04-2022, 11:15 PM
#33
20" spoke to PCCB caliper clearance is 5.1mm. Internally, our minimum requirement for a safe tolerance is 3mm.
That is correct. These Sprint Line wheel designs are fully forged wheels constructed from 6061-T6 aluminum and a 10,000 ton press leveraging our custom designed motorsport forged blanks.
We're very big on wheel education and transparency, which is why our flow formed wheels are called just that - flow formed wheels. We're proud to offer wheels from both manufacturing methods, as that allows us to deliver quality, lightweight motorsport oriented wheels to all types of customers depending on their performance and budgetary needs.
You can visit our website, review the original post in this thread, or watch this tech video we made for more info on our new forged line of wheels:
https://www.youtube.com/watch?v=TtPtVEGZaTE&t=91s
We offer both 10.5" and 11" rear wheels, as that allows drivers to choose the best solution for their personal needs. The 10.5" rear wheels are suited best for 285/35-19 and 295/35-19 that run true to size, while the wider 11" wheels are better suited for 295/35-19s that run wide, in addition to 305/30-19.
The 11" wheels will fit any 981/718 Cayman Boxster including your GTS 4.0.
- Ryan
That is correct. These Sprint Line wheel designs are fully forged wheels constructed from 6061-T6 aluminum and a 10,000 ton press leveraging our custom designed motorsport forged blanks.
We're very big on wheel education and transparency, which is why our flow formed wheels are called just that - flow formed wheels. We're proud to offer wheels from both manufacturing methods, as that allows us to deliver quality, lightweight motorsport oriented wheels to all types of customers depending on their performance and budgetary needs.
You can visit our website, review the original post in this thread, or watch this tech video we made for more info on our new forged line of wheels:
https://www.youtube.com/watch?v=TtPtVEGZaTE&t=91s
We offer both 10.5" and 11" rear wheels, as that allows drivers to choose the best solution for their personal needs. The 10.5" rear wheels are suited best for 285/35-19 and 295/35-19 that run true to size, while the wider 11" wheels are better suited for 295/35-19s that run wide, in addition to 305/30-19.
The 11" wheels will fit any 981/718 Cayman Boxster including your GTS 4.0.
- Ryan
I went to your webpage and it seems the new forged wheels are also available in 18" that would fit 718 GTS 4.0:
https://support.apexraceparts.com/hc...-Fitment-Guide
Can you confirm? This is very appealing if so. I'd be interested in running 245/45/18 front, 285/40/18 rear (something like PS4), which diameter wise is nearly exact to what stock GT4 tires are (which should fit GTS 4.0).
You don't list that combo on your recommended sizes, but given the sizes you recommend it does not look like there should be any issues?
Also, the 18" are not part of your group buy - any chances they could be included?
03-05-2022, 07:30 PM
#34
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Thank you for the answer.
I went to your webpage and it seems the new forged wheels are also available in 18" that would fit 718 GTS 4.0:
https://support.apexraceparts.com/hc...-Fitment-Guide
Can you confirm? This is very appealing if so. I'd be interested in running 245/45/18 front, 285/40/18 rear (something like PS4), which diameter wise is nearly exact to what stock GT4 tires are (which should fit GTS 4.0).
You don't list that combo on your recommended sizes, but given the sizes you recommend it does not look like there should be any issues?
Also, the 18" are not part of your group buy - any chances they could be included?
I went to your webpage and it seems the new forged wheels are also available in 18" that would fit 718 GTS 4.0:
https://support.apexraceparts.com/hc...-Fitment-Guide
Can you confirm? This is very appealing if so. I'd be interested in running 245/45/18 front, 285/40/18 rear (something like PS4), which diameter wise is nearly exact to what stock GT4 tires are (which should fit GTS 4.0).
You don't list that combo on your recommended sizes, but given the sizes you recommend it does not look like there should be any issues?
Also, the 18" are not part of your group buy - any chances they could be included?
Front: 18x9" ET46
Rear: 18x10.5" ET44 (our 18x10" ET36 can also be used in the rear)
For tires, it really comes down to how you plan to enjoy the car and whether or not you have suspension/alignment modifications but the most popular configuration is 245/40-18 front, 275/40-18 rear. Here is some info pulled from our 718 Cayman/Boxster Fitment Guide:
- APEX Staff Pick: Front: 245/40-18 // Rear: 275/40-18
- Typically a direct fit, but we encourage a little additional negative camber up front
- Max Performance Summer: Michelin PSS (300 TW)
- Extreme Performance Summer: Yokohama A052 (240 TW), Hankook RS-4 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CR-1 (200 TW),
- R-Compound: Nitto NT01 (100 TW), Nankang AR-1 (100 TW)
- Alternative 1: Front: 255/35-18 // Rear: 275/35-18
- A minimum of -2º of front camber is recommended
- Max Performance Summer: Michelin PS4S (300 TW)
- Extreme Performance Summer: Hankook RS-4 (200 TW), Dunlop Direzza ZIII (200 TW), Falken RT660 (200 TW), Nankang CR-1 (200 TW)
- R-Compound: Nankang AR-1 (100 TW), Toyo R888R (100 TW)
- Alternative 2: Front: 255/35-18 // Rear: 295/30-18
- A minimum of -2º of front camber is recommended
- Short rolling diameter front & rear
- Max Performance Summer: Michelin PS4S (300 TW)
- Extreme Performance Summer: Yokohama A052 (200 TW)
- R-Compound: Nankang AR-1 (100 TW), Toyo R888R
- Alternative 3: Front: 265/35-18 // Rear: 295/35-18
- A minimum of -2.5º of front camber is recommended
- Max Performance Summer: Continental Extremecontact Sport (340 TW)
- Extreme Performance Summer: Yokohama A052 (200 TW)
- R-Compound: No options currently available
245/45-18 front, 285/40-18 rear is kind of a funky configuration with very few tires available, but it may work just fine. We have no experience with those sizes.
We kicked off this new forged Sprint Line with our 18" fitments several months ago, but the Group Buy pre-sale closed out quite some time ago. As you mentioned, the wheels are now available on our site.
- Ryan
03-05-2022, 08:48 PM
#35
Our 18" forged wheels work great on the GTS 4.0. in the following sizes:
Front: 18x9" ET46
Rear: 18x10.5" ET44 (our 18x10" ET36 can also be used in the rear)
.....
245/45-18 front, 285/40-18 rear is kind of a funky configuration with very few tires available, but it may work just fine. We have no experience with those sizes.
Front: 18x9" ET46
Rear: 18x10.5" ET44 (our 18x10" ET36 can also be used in the rear)
.....
245/45-18 front, 285/40-18 rear is kind of a funky configuration with very few tires available, but it may work just fine. We have no experience with those sizes.
Your recommended front 245/40/18 is much smaller than stock GTS 4.0, not to mention GT4:
F/R: size - diameter
F: 235/35/20 (GTS) - 26.5"
F: 245/35/20 (GT4): - 26.8"
F: 245/40/18 (your pick) - 25.7" (1.1" smaller than GT4)
F: 245/45/18 (mine) - 26.7"
R: 265/35/20 (GTS) - 27.3"
R: 295/30/20 (GT4) - 27"
R: 275/40/18 (your pick) - 26.7"
R: 285/40/18 (mine) - 27"
Numbers per https://tiresize.com/calculator/.
We kicked off this new forged Sprint Line with our 18" fitments several months ago, but the Group Buy pre-sale closed out quite some time ago. As you mentioned, the wheels are now available on our site.
- Ryan
- Ryan
Last edited by unclemat; 03-05-2022 at 08:57 PM.
03-07-2022, 02:48 PM
#36
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Hmm, maybe funky, but available in Pilots 4s. I was going by stock Spyder/GT4 wheel diameters, and these are near perfect match.
Your recommended front 245/40/18 is much smaller than stock GTS 4.0, not to mention GT4:
F/R: size - diameter
F: 235/35/20 (GTS) - 26.5"
F: 245/35/20 (GT4): - 26.8"
F: 245/40/18 (your pick) - 25.7" (1.1" smaller than GT4)
F: 245/45/18 (mine) - 26.7"
R: 265/35/20 (GTS) - 27.3"
R: 295/30/20 (GT4) - 27"
R: 275/40/18 (your pick) - 26.7"
R: 285/40/18 (mine) - 27"
Numbers per https://tiresize.com/calculator/.
Oh, bummer!
Your recommended front 245/40/18 is much smaller than stock GTS 4.0, not to mention GT4:
F/R: size - diameter
F: 235/35/20 (GTS) - 26.5"
F: 245/35/20 (GT4): - 26.8"
F: 245/40/18 (your pick) - 25.7" (1.1" smaller than GT4)
F: 245/45/18 (mine) - 26.7"
R: 265/35/20 (GTS) - 27.3"
R: 295/30/20 (GT4) - 27"
R: 275/40/18 (your pick) - 26.7"
R: 285/40/18 (mine) - 27"
Numbers per https://tiresize.com/calculator/.
Oh, bummer!
- Ryan
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unclemat (03-11-2022)
03-08-2022, 12:45 AM
#37
Ryan, the photos turned out great! I will continue to patiently wait for the release of the 20s.
Maybe I should pre-order my tires just in case inventory is low everywhere!
Maybe I should pre-order my tires just in case inventory is low everywhere!
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Apex Wheels (03-08-2022),
monchter (03-14-2022)
03-08-2022, 04:10 PM
#38
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Looking forward to getting a set of the 20" wheels into your hands soon!
- Ryan
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KelvinC (03-08-2022)
03-11-2022, 12:35 AM
#39
Well, jumped on your preorder for 19" (9" & 10.5"). Decided these will be the right compromise (vs. "fat" 18" I was considering).
Now to tires. Pilot Sport 4S. This will be more mostly street driven car (GTS 4.0).
Saw your guide. I am down to 255/35/19 in front, but wondering about pros/cons of 275/35/19 or 285/35/19 for the rear. Either probably would be fine. In theory 275 (with 255 in front) should make the car little less understeerish if pushed too hard, but I suppose the differences will be mild at best.
Now to tires. Pilot Sport 4S. This will be more mostly street driven car (GTS 4.0).
Saw your guide. I am down to 255/35/19 in front, but wondering about pros/cons of 275/35/19 or 285/35/19 for the rear. Either probably would be fine. In theory 275 (with 255 in front) should make the car little less understeerish if pushed too hard, but I suppose the differences will be mild at best.
03-11-2022, 01:13 AM
#40
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Well, jumped on your preorder for 19" (9" & 10.5"). Decided these will be the right compromise (vs. "fat" 18" I was considering).
Now to tires. Pilot Sport 4S. This will be more mostly street driven car (GTS 4.0).
Saw your guide. I am down to 255/35/19 in front, but wondering about pros/cons of 275/35/19 or 285/35/19 for the rear. Either probably would be fine. In theory 275 (with 255 in front) should make the car little less understeerish if pushed too hard, but I suppose the differences will be mild at best.
Now to tires. Pilot Sport 4S. This will be more mostly street driven car (GTS 4.0).
Saw your guide. I am down to 255/35/19 in front, but wondering about pros/cons of 275/35/19 or 285/35/19 for the rear. Either probably would be fine. In theory 275 (with 255 in front) should make the car little less understeerish if pushed too hard, but I suppose the differences will be mild at best.
- Ryan
03-11-2022, 02:04 AM
#41
Great to have you on board. As our guide mentions, for a GTS we prefer pairing the 255/35-19 front with 285/35-19 in the rear for a few reasons. The 285s will provide a bit more grip out back without going overboard and without inducing understeer. The 285/35-19 is also a better height from a rolling diameter perspective, and fits a 10.5" wheel very nicely.
- Ryan
- Ryan
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Apex Wheels (03-11-2022)
03-11-2022, 12:37 PM
#42
I too have pledged to be part of the VS-5RS gang. Very much wish I could have chosen a different color, but prefer not to wait.
I'm not a marketing person, but really enjoyed the videos and all of the information in your marketing material.
I'm not a marketing person, but really enjoyed the videos and all of the information in your marketing material.
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Apex Wheels (03-11-2022)
03-11-2022, 04:16 PM
#43
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Aside from showing off beauty shots of our wheels on P-cars, we are really passionate about the technical and education side of things so you can expect much more of that to come.
- Ryan
03-12-2022, 04:57 PM
#45
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