Help with wheel offset
Help with wheel offset
So I’m quite terrible with offsets . I want to see if the following offsets sizes would work on
my 996 turbo , offsets and sizes are .
front 19 x8.5 offset 45
rear 19 x10 offset 62
The tire I’d be running 235/30
and 315x25
my 996 turbo , offsets and sizes are .
front 19 x8.5 offset 45
rear 19 x10 offset 62
The tire I’d be running 235/30
and 315x25
10" is a no go, for this car - 50s and 60s offsets in the rear are for narrow body.
https://support.apexraceparts.com/hc/en-us/articles/360003022314-996-911-Widebody-Wheel-Tire-Fitment-Guide
https://support.apexraceparts.com/hc/en-us/articles/360003022314-996-911-Widebody-Wheel-Tire-Fitment-Guide
Last edited by GT3 Chuck; Mar 9, 2021 at 12:37 PM.
i use this website any time i'm working on wheel sizing
https://www.willtheyfit.com/
and to echo what others have said, 315 on a 10 is going to be very "meaty" looking at the very least, and probably too much
https://www.willtheyfit.com/
and to echo what others have said, 315 on a 10 is going to be very "meaty" looking at the very least, and probably too much
Last edited by GT3 Chuck; Mar 11, 2021 at 12:54 AM.
Echoing what others have mentioned. For a 996 Turbo, the ideal wheel widths are either 8.5" or 9" up front, and 11" or 12" in the rear depending on how you plan to use the car and your desired tire sizes. Your rear wheels are too slim for the desired tire size, and the offset is far too high resulting in the need for very thick spacers.
The 18" fitments we engineered specifically for the 996 Turbo are as follows for your reference:
OEM+
F. 18x8.5" ET42
R. 18x11" ET36
GT2
F. 18x8.5" ET42
R. 18x12" ET45
Track/Race
F. 18x9" ET46
R. 18x12" ET45
Here is a link to our 996 widebody wheel and tire fitment guide for more details: LINK
Best,
Ryan
The 18" fitments we engineered specifically for the 996 Turbo are as follows for your reference:
OEM+
F. 18x8.5" ET42
R. 18x11" ET36
GT2
F. 18x8.5" ET42
R. 18x12" ET45
Track/Race
F. 18x9" ET46
R. 18x12" ET45
Here is a link to our 996 widebody wheel and tire fitment guide for more details: LINK
Best,
Ryan
Last edited by APEXRaceParts; Mar 10, 2021 at 10:24 AM.
Echoing what others have mentioned. For a 996 Turbo, the ideal wheel widths are either 8.5" or 9" up front, and 11" or 12" in the rear depending on how you plan to use the car and your desired tire sizes. Your rear wheels are too slim for the desired tire size, and the offset is far too high resulting in the need for very thick spacers.
The 18" fitments we engineered specifically for the 996 Turbo are as follows for your reference:
OEM+
F. 18x8.5" ET42
R. 18x11" ET36
GT2
F. 18x8.5" ET42
R. 18x12" ET45
Track/Race
F. 18x9" ET46
R. 18x12" ET45
Here is a link to our 996 widebody wheel and tire fitment guide for more details: LINK
Best,
Ryan
The 18" fitments we engineered specifically for the 996 Turbo are as follows for your reference:
OEM+
F. 18x8.5" ET42
R. 18x11" ET36
GT2
F. 18x8.5" ET42
R. 18x12" ET45
Track/Race
F. 18x9" ET46
R. 18x12" ET45
Here is a link to our 996 widebody wheel and tire fitment guide for more details: LINK
Best,
Ryan
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Here's a few photos for inspiration

- Ryan
We do make our SM-10 Porsche wheels in a 19" diameter, however, only narrowbody fitments haver been released at this time. These could easily be used on WB 998 chassis with spacers in the rear.
F: 19x9" ET50
R: 19x11" ET60
F: 19x9" ET50
R: 19x12" ET65
In late June we plan to release a new forged wheel design in 18" and 19" diameters which will come in fitments for the 996 Turbo/GT2 (9" / 12" stagger).
- Ryan
F: 19x9" ET50
R: 19x11" ET60
F: 19x9" ET50
R: 19x12" ET65
In late June we plan to release a new forged wheel design in 18" and 19" diameters which will come in fitments for the 996 Turbo/GT2 (9" / 12" stagger).
- Ryan
I went with the gt2 fitment
18x8.5 fronts (235 fronts)
18x12 rears (315 rears)
Best set up with the proper alignment, coilovers, sways etc. The Apex wheels were the perfect addition and I recommend them to all.
18x8.5 fronts (235 fronts)
18x12 rears (315 rears)
Best set up with the proper alignment, coilovers, sways etc. The Apex wheels were the perfect addition and I recommend them to all.






