Sponsored

First thread for me, looking for some Wheel info

jdinny

Well-Known Member
First Name
John
Joined
Dec 2, 2025
Threads
1
Messages
45
Reaction score
54
Location
Orange County NY
Vehicle(s)
12 JK Wrangler, 2020 JT Rubicon Launch
Occupation
Heavy Equipment Operator/Truck driver
So, long time Jeeper, from my '47 CJ2a to my Gladiator.
Been in the JK world since they came out, still have a few. Picked up a '20 Gladiator Rubicon and we're really liking it. Wife's nagging me to get wheels and 35's on it, good wife right?
Got it down to a couple of wheels from KMC, the GRS or the IMS.
The backspacing and offsets from the JL/Gladiator world totally different than the JK and CJ world.
I was looking for the IMS in +25 mm, and they have them listed on a 1 - 3 month backorder. I found the GRS in 0mm, and we're curoius as to have far they will "poke" out of the flares?
Anybody running this combo that could share some pics with me, doesn't have to be KMC's but the 0mm, 4.75 B/S.
I'm looking through all the threads I can find to get some ideas.
Anyway, thanks for the help from anyone willing to share.
Have a great day
Sponsored

 

DiehardTory

Well-Known Member
First Name
Dee
Joined
Jan 6, 2024
Threads
21
Messages
329
Reaction score
414
Location
Mid Atlantic
Vehicle(s)
Gladiator
Occupation
Retiree
The wheel/tire in the avatar Mojave . is 17x8.5 with 4.5" backspace tires are 35x11.50s YES I have poke out about 1 tread with stock fenders.
AI says:
Backspacing for a +44.45 mm offset on a 7.5-inch wheel is approximately 6.25 inches.

How that number is calculated Backspacing is determined from wheel width and offset:
Backspacing=(Wheel Width2)+(Offset25.4)
For the Gladiator Rubicon’s 17×7.5J wheel: Wheel width: 7.5 in Half width: 3.75 in Offset: 44.45 mm = 1.75 in
Backspacing=3.75+1.75=5.50 in
But Jeep measures wheel width between bead seats, not total physical width. The actual physical width is closer to 8.5 inches, adding ~1 inch total (½ inch per side):

Backspacing=4.25+1.75=6.00–6.25 in
 

Bandit’s Lair

Well-Known Member
First Name
Jason
Joined
Jul 9, 2025
Threads
32
Messages
2,755
Reaction score
4,518
Location
Southern California
Vehicle(s)
2021 Gladiator Sport S
Occupation
Retired
This is 37x12.5 on a 0 offset Method with Nemesis fenders. Slightly slimmer fender profile so take that into account. Poke is very acceptable. I’ll occasionally get a rock kick up into the slider but not too often.

Jeep Gladiator First thread for me, looking for some Wheel info IMG_2123
 
OP
OP
jdinny

jdinny

Well-Known Member
First Name
John
Joined
Dec 2, 2025
Threads
1
Messages
45
Reaction score
54
Location
Orange County NY
Vehicle(s)
12 JK Wrangler, 2020 JT Rubicon Launch
Occupation
Heavy Equipment Operator/Truck driver
The wheel/tire in the avatar Mojave . is 17x8.5 with 4.5" backspace tires are 35x11.50s YES I have poke out about 1 tread with stock fenders.
AI says:
Backspacing for a +44.45 mm offset on a 7.5-inch wheel is approximately 6.25 inches.

How that number is calculated Backspacing is determined from wheel width and offset:
Backspacing=(Wheel Width2)+(Offset25.4)
For the Gladiator Rubicon’s 17×7.5J wheel: Wheel width: 7.5 in Half width: 3.75 in Offset: 44.45 mm = 1.75 in
Backspacing=3.75+1.75=5.50 in
But Jeep measures wheel width between bead seats, not total physical width. The actual physical width is closer to 8.5 inches, adding ~1 inch total (½ inch per side):

Backspacing=4.25+1.75=6.00–6.25 in
Like the look in your avatar pic, not too much poke at all.
Thanks for the info
 
OP
OP
jdinny

jdinny

Well-Known Member
First Name
John
Joined
Dec 2, 2025
Threads
1
Messages
45
Reaction score
54
Location
Orange County NY
Vehicle(s)
12 JK Wrangler, 2020 JT Rubicon Launch
Occupation
Heavy Equipment Operator/Truck driver
This is 37x12.5 on a 0 offset Method with Nemesis fenders. Slightly slimmer fender profile so take that into account. Poke is very acceptable. I’ll occasionally get a rock kick up into the slider but not too often.

Looks pretty good, not to muck poke with the narrow Nemesis fenders.
Thanks for the pic

IMG_2123.webp
 

Sponsored

Freems

Well-Known Member
First Name
Mike
Joined
Mar 13, 2023
Threads
10
Messages
878
Reaction score
1,202
Location
Boise Idaho
Vehicle(s)
2020 Gladiator Sport 2022 Bronco Sport
Occupation
Retired
So, long time Jeeper, from my '47 CJ2a to my Gladiator.
Been in the JK world since they came out, still have a few. Picked up a '20 Gladiator Rubicon and we're really liking it. Wife's nagging me to get wheels and 35's on it, good wife right?
Got it down to a couple of wheels from KMC, the GRS or the IMS.
The backspacing and offsets from the JL/Gladiator world totally different than the JK and CJ world.
I was looking for the IMS in +25 mm, and they have them listed on a 1 - 3 month backorder. I found the GRS in 0mm, and we're curoius as to have far they will "poke" out of the flares?
Anybody running this combo that could share some pics with me, doesn't have to be KMC's but the 0mm, 4.75 B/S.
I'm looking through all the threads I can find to get some ideas.
Anyway, thanks for the help from anyone willing to share.
Have a great day
KMC 549 grs +18 ….35x12.50 17”

Jeep Gladiator First thread for me, looking for some Wheel info IMG_1755


Jeep Gladiator First thread for me, looking for some Wheel info IMG_0900
 
OP
OP
jdinny

jdinny

Well-Known Member
First Name
John
Joined
Dec 2, 2025
Threads
1
Messages
45
Reaction score
54
Location
Orange County NY
Vehicle(s)
12 JK Wrangler, 2020 JT Rubicon Launch
Occupation
Heavy Equipment Operator/Truck driver
KMC 549 grs +18 ….35x12.50 17”

IMG_1755.webp


IMG_0900.webp
Your truck looks great!
Yes, I LOVE that look, not much poke at all.
Thanks so much for the pics
 

Pat Witt

Well-Known Member
First Name
Pat
Joined
Mar 14, 2024
Threads
3
Messages
117
Reaction score
112
Location
Indianapolis
Vehicle(s)
2021 jeep gladiator
Occupation
Service technician
This is my 21 mojave that has 37×12.5 on Rubicon wheels with flat fenders to get mor wheel travel

Jeep Gladiator First thread for me, looking for some Wheel info 20251229_164305


Jeep Gladiator First thread for me, looking for some Wheel info 20251229_164310


Jeep Gladiator First thread for me, looking for some Wheel info 20251229_164326
 

Commodus

Well-Known Member
First Name
Buck
Joined
Aug 11, 2019
Threads
22
Messages
664
Reaction score
719
Location
San Diego, Ca.
Vehicle(s)
Hydro Blue Gladiator, BMW X3
Occupation
Retired
Vehicle Showcase
2
So, long time Jeeper, from my '47 CJ2a to my Gladiator.
Been in the JK world since they came out, still have a few. Picked up a '20 Gladiator Rubicon and we're really liking it. Wife's nagging me to get wheels and 35's on it, good wife right?
Got it down to a couple of wheels from KMC, the GRS or the IMS.
The backspacing and offsets from the JL/Gladiator world totally different than the JK and CJ world.
I was looking for the IMS in +25 mm, and they have them listed on a 1 - 3 month backorder. I found the GRS in 0mm, and we're curoius as to have far they will "poke" out of the flares?
Anybody running this combo that could share some pics with me, doesn't have to be KMC's but the 0mm, 4.75 B/S.
I'm looking through all the threads I can find to get some ideas.
Anyway, thanks for the help from anyone willing to share.
Have a great day
This is a picture of mine with those offsets and backspacing but on 34's
Jeep Gladiator First thread for me, looking for some Wheel info 6-15-2024 NEW WHEELS DRIVER SIDE
Sponsored

 
 







Top