Wheel offsets

[pgf]

I am in the throws of the much familiar tyre change, and I am less inclined to get too excited by significantly changing sizes, etc .I can see value in sticking with close to standard sizes but increaseing wheel offset (25mm each side) interests me. Does anyone have experience or views of this subject?

In my specific case I am looking at going from 235/70 to 245/70 with 25mm offset.

PGF

D2 Dual Fuel auto 2" OME, Airlocker, CDL, ARB Bar and cargo barrier. Its amazing how far a fairly stock truck will go!

[p38arover]

I am in the throws of the much familiar tyre change, and I am less inclined to get too excited by significantly changing sizes, etc .I can see value in sticking with close to standard sizes but increaseing wheel offset (25mm each side) interests me. Does anyone have experience or views of this subject?

Sounds like you are decreasing offset.

Standard Disco rims have 33mm offset.

[100I]

It will drive like crap is the short answer.

Longer answer; Standing (or squatting) at the front of your car, if you were to draw an imaginary line thru the top and bottom king pins (or ball joints) and continuing to the ground, it should strike the ground at the centre of the tyre.
If you change to a larger diameter tyre then you may need to look at offset to compensate (and stop tyre fouling body or suspension etc).
Offset rims and big rubber have to go hand in hand, but a small increase in width (and of course the correlating tiny increase in diameter) won't need these steps.

[Slunnie]

It will drive like crap is the short answer.

Longer answer; Standing (or squatting) at the front of your car, if you were to draw an imaginary line thru the top and bottom king pins (or ball joints) and continuing to the ground, it should strike the ground at the centre of the tyre.
If you change to a larger diameter tyre then you may need to look at offset to compensate (and stop tyre fouling body or suspension etc).
Offset rims and big rubber have to go hand in hand, but a small increase in width (and of course the correlating tiny increase in diameter) won't need these steps.

That's quite an interesting point. Toyota have run that scenario for years from the factory with 25mm neg offset which has the rim sit about 2.5" further out from the hub than what LR do + running wider rims.

Perhaps that backs up your comments!

That said, I've not run offset rims faster than about walking speeds also.

[DaveS3]

It will drive like crap is the short answer.

Longer answer; Standing (or squatting) at the front of your car, if you were to draw an imaginary line thru the top and bottom king pins (or ball joints) and continuing to the ground, it should strike the ground at the centre of the tyre.
If you change to a larger diameter tyre then you may need to look at offset to compensate (and stop tyre fouling body or suspension etc).
Offset rims and big rubber have to go hand in hand, but a small increase in width (and of course the correlating tiny increase in diameter) won't need these steps.

I realise that what I have quoted is the 'theoretical answer' and I do understand what is being said, but every car I have driven with offset rims drives BETTER than with standard offset.
The width helps.

Cheers
Dave

[loanrangie]

Sounds like you are decreasing offset.

Standard Disco rims have 33mm offset.

thats negative offset.
He is talking 25mm positive offset. Unless the offset is so great that the wheel completely exposes the hub/disc it will drive better as it has a wider track giving more stability.