Author Topic: Wheel sizes 6x6 and suitable replacement size  (Read 268 times)

Offline Woodie

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Wheel sizes 6x6 and suitable replacement size
« on: September 16, 2018, 08:15:22 PM »
Hi all,
       I'm looking at picking up my 6x6 ex ambulance this coming weekend.

I have found a set of wheels for sale. They are 235/85/16 BFG (Goodrich) KM2 Mud Terrain. They are mounted on Dynamic Steel rims that are apparently rated to 1400kg per wheel so should be well strong enough.

My question is....

How does this compare to the standard wheels in circumference as I would like to achieve slightly quicker highway speeds?
I assume they will fit under the arch at that width?
I know the original tyres are 16" but what width and profile are they?


Regards
Adrian

Offline RAF101

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #1 on: September 16, 2018, 09:06:15 PM »
Need more than differen tyres to increase the highway speed... ;D

Total drivetrain transplant maybe?

And improved aero? :)

Ps Yes I have a 6x6 ambulance....

Offline BEARMAN

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #2 on: September 16, 2018, 09:59:17 PM »
Hi all,
       I'm looking at picking up my 6x6 ex ambulance this coming weekend.

I have found a set of wheels for sale. They are 235/85/16 BFG (Goodrich) KM2 Mud Terrain. They are mounted on Dynamic Steel rims that are apparently rated to 1400kg per wheel so should be well strong enough.

My question is....

How does this compare to the standard wheels in circumference as I would like to achieve slightly quicker highway speeds?
I assume they will fit under the arch at that width?
I know the original tyres are 16" but what width and profile are they?


Regards
Adrian

235/85R16 are the same rolling diameter as a 7.50R16 Adrian so will make no difference to the road speed.
09/1998 Perentie 6X6 ARN202516 - BRUTUS

Offline Woodie

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #3 on: September 16, 2018, 10:31:31 PM »
Yep i thought they would be very close to what's there already.

Thanks heaps
Adrian

Offline Geoff035

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #4 on: September 18, 2018, 07:14:23 AM »
I think I saw a post somewhere cautioning the use of non oem wheels on the 6x6 due to possible failures due to the weight of the vehicles

Offline Mick_Marsh

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #5 on: September 18, 2018, 01:14:48 PM »
I think I saw a post somewhere cautioning the use of non oem wheels on the 6x6 due to possible failures due to the weight of the vehicles
Yes, there has been some discussion in the past.
The 6x6s also tend to drag the wheels causing flexing and fatigue of the rims. One of mine has cracked.
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Offline Woodie

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #6 on: September 18, 2018, 02:44:56 PM »
Yep found the post re wheek failure. Sobering reminder of modifications going wrong.

I think i like the look of the standard rims and will eventually fit up 255 85 16 rubber as from what I've read and heard that's the maximum that will fit.


Cheers
Woodie

Offline 303Gunner

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #7 on: September 19, 2018, 08:17:11 PM »
The standard Perentie rim (ie 6.0x16) will take a 235/85-16 tyre at a maximum. If you'd like to go to a 255/85-16, you will need a set of 6.5x16 rims, of which there are several genuine LR versions, but discussion is again divided on whether they should be used under a 6x6.

Offline Woodie

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Re: Wheel sizes 6x6 and suitable replacement size
« Reply #8 on: September 20, 2018, 09:19:24 AM »
Hey 303,
Thanks for the reply.

I agree with your comments as since my last reply i did some further research and there are some concerning comments in regards to cracking wheels.

I think at this stage i will just wear out what I've got. I only do around 8k a year and theybhave about 60% of tread left so there's a few years left in them.


Thanks again mate
Cheers Woodie