WJ Legal 17" Rim and Tire Options

[Chumby]

Hi all,

Collected info from a few posts/websites - thought I would make a summary below for the different potential LEGAL 17" rim and AT/Mud tire options available for the WJ. Please post if you know of any more missed off this list.

Cheers,
Chumby


Rims
====

50mm increase allowable in track size for 4wd vechicles. To get legal WJ rims relating to track you min offset needs to be +26 or higher.

WJ Stock (original)
-------------------

- Machined Cast Aluminum: 16x7.0, Backspacing: 6.0 inch, Offset: +50.8mm

- Machined Cast Aluminum: 17x7.5, Backspacing: 6.25 inch, Offset: +50.8mm


JK Rubicon Wheels
---------------------

- Machined Cast Aluminum: 17x7.5, Backspacing 6.25" (158.75mm), Offset of factory wheels (mm) +44.45


Thrd Party Rims with between 26mm and 50.8mm offset to fit a WJ.
----------------------------------------------------------------------------

- Dynamic Steel Rims: Steel: 17x8 , Backspacing: 144.3mm, Offset: +30mm

- Dynamic Alloy Wheels: DT8 Gloss Black Machined 17” 8” 5 x127 +35mm

- Moto Metal: MO970 17" 8" 5x127 +40mm

- American Racing: AR890 17" 8" 5x127 +30mm Machined Black

- XD SERIES BY KMC WHEELS

- HEIST 17x8 5x127.00 SATIN BLACK (35 mm)

- Black Rhino Trabuco 17x8 5x127 (5x5") +30mm Matte Black Wheel Rim


Tires
===

50mm - increase allowable in rolling diameter for 4wd vechicles
Largest WJ stock tire: 245/70/16 (749.3mm - 29.5 inch)

Total largest legal rolling diameter: 749.3 + 50= 799.3mm



Available Legal Tire Sizes / Brands
--------------------------------------

245/65/r17 (749.3mm - 29.5inch)

Bridgestone Dueler A/T D694
Dunlop Grandtrek AT3
Goodyear Wrangler AT/R
Pirelli Scorpion ATR
Yokohama Geolander AT/S

255/65/r17 (764 - 30.1inch)

Maxxis Bighorn M/T-762 Mud Terrains
Bridgestone Dueler A/T D694
Pirelli Scorpion ATR
Kumho KL78
Geolander AT-S

245/70/R17 (776mm - 30.56inch)

BF Goodrich Mud Terrain KM2
Pirelli Scorpion ATR
Mickey Thompson ATZ 5-rib
Cooper A/T3 All-Terrain
Cooper S/T Sure Trac
Cooper STT Armor-Tek3


265/65/R17 (776mm - 30.56inch)

Goodyear Silent Armor
Yokohama Geolander A/T-S
Cooper Discovery AT3
BF Goodrich All-Terrain T/A KO
Toyo Open Country H/T
Bridgestone Dueler A/T D694
General Grabber AT2
Nankang N990
Continental ContiCross Contact
Dunlop Grandtrek AT3
Michelin LTX AT2
Pirelli Scorpion ATR
Kumho KL78
Mickey Thompson Baja Radial STZ
Copper A/T3 All-Terrain

275/65/R17 (790mm - 31.1inch)

Yokohama Geolander A/T-S
Bridgestone Dueler A/T D694
BF Goodrich All-Terrain T/A KO
Dunlop Grandtrek AT3
Pirelli Scorpion ATR

245/75/R17 (799.08mm - 31.46inch)

Goodyear Silent Armor
BFG M/T KM2 (USA import only - try tirerack, (usatoaus.com shipping) - see http://www.ausjeepoffroad.com/forum/...d.php?t=124857


255/70/R17 (789.94 - 31.1inch)

BF Goodrich All Terrain KM2

265/70/R17 (802.64mm - 31.6inch) (not legal - slightly over)

Yokohama Geolander A/T-S
Mickey Thompson's ATZ
BF Goodrich Mud Terrain KM2
Mickey Thompson ATZ 4-rib
Cooper ATR
Copper A/T3 All-Terrain
Cooper S/T Sure Trac
Cooper S/T MAXX Heavy Duty All-Terrain
Cooper STT Armor-Tek3


Information on Wheels and Tires
===============================

Legal
-----
National: http://www.infrastructure.gov.au/roa..._2011%20v3.pdf

Queensland: http://www.tmr.qld.gov.au/~/media/c7..._vehicles2.pdf
Tasmania: http://www.transport.tas.gov.au/vehi..._modifications
Victoria: http://www.vicroads.vic.gov.au/NR/rd...340/0/VSI8.pdf
New South Wales: http://www.rta.nsw.gov.au/registrati...s_nov_2007.pdf
South Australia: http://www.transport.sa.gov.au/perso...hicle_mods.asp
Western Australia: http://www.transport.wa.gov.au/licensing/20500.asp
ACT: http://www.rego.act.gov.au/assets/PD...0the%20ACT.pdf
NT:


Fitting Diagram
---------------
http://www.rimsntires.com/specs.jsp

Tire Calculator
---------------
www.1010tires.com/TireSizeCalculator.asp

Other Tire Related Threads
--------------------------
http://www.ausjeepoffroad.com/forum/...d.php?t=112224

[pmac]

Excellent work mate. It helps a lot.

My concern though is different state legislation. For example, I just got this from the Qld Transport website - http://www.tmr.qld.gov.au/~/media/c7..._vehicles2.pdf

and it says "The rim diameter may be varied from the standard size
but the overall diameter of the tyre must not vary by more than +15mm or -26mm."

If standard is 749.3 mm, then you can only go to 765mm or 255/65/17.

I know they were looking at having the same laws Australia wide, but I don't think that's happened yet.

[HR31COUPE]

SA is the same except it's plus or minus 15mm of the overall diameter. It means that for me to have 33's on my landcruiser I need to have an engineers certificate which is pretty ridiculous.

Originally Posted by pmac

Excellent work mate. It helps a lot.

My concern though is different state legislation. For example, I just got this from the Qld Transport website - http://www.tmr.qld.gov.au/~/media/c7..._vehicles2.pdf

and it says "The rim diameter may be varied from the standard size
but the overall diameter of the tyre must not vary by more than +15mm or -26mm."

If standard is 749.3 mm, then you can only go to 765mm or 255/65/17.

I know they were looking at having the same laws Australia wide, but I don't think that's happened yet.

Great Information & well researched
BUT
I've not heard of any one being pulled over or defected or denied insurance in a Grand for larger tyres.

Correct me if I'm wrong

[Chumby]

Hi all,

I think that in most states you can go 15mm without certification but then up to 50mm with certification...There was no problems going to extra 50mm track and 50mm diameter here in Tas when I had the Jeep certified...

RACT wouldn't insure my Jeep with anything illegal on it... including wheels. If no insurance... pretty risky running if in an accident.

Also, the idea of selling a 100% legal/certified car makes a lot of appeal I would image. Seems it can be done if you are happy to loose 1inch of rolling diameter.

The "sweet spot" seems to be a rim with +30mm offset and 265/65/R17. I am getting this combo looked at today. The 275/65/R17 on a +30mm rim was too close to my long arm (would rub under flex) - and it extruded out a little from the wheel arch. Seems to be a lot of tires available in the 265/65/r17 size as well....

The 245/75/R17 is the perfect size (biggest legal tire you can go to), but there are just no options available that I could find apart from the silent armors...which in my view are no good for much at all...

Cheers
Chumby

[JarrardB]

Excellent post and as you say - +15mm uncertified - +50mm certified..(but who gets engineering certification anyway??)

This should be stickied if it hasn't already.

[mikehzz]

I have Yokohama Geolander AT/S at 245/65/17 on mine and they are excellent. Not mentioned below.