Wheel Offsets

[Pete38]

Hi All. New here and new to owning a P38. I tried searching the forum but nothing obvious came up but apologise if my first Thread is a repeat.

I'm in the process of slowly upgrading my range rover for off road use but still try and keep its onroad capabilities as good as possible.

Have done the emergency EAS kit, upgraded the stereo, have installed Gen 3 bags and next is the wheels/tyres which will then be followed by a lift kit to suit the extended travel of the gen 3's.

But for the current time I'm looking at rims for my off road set of tyres.

Have decided to buy Kuhmo KL71 Mud Terrains as I will normally drive with the almost new Cooper Highway terrains already on it.

So I need rims to suit 245/75/16 which I believe can be 16x7 or 16x8. These should be the maximum advised, almost 31 inch, before scraping may start to happen without a lift/spacers from my understanding.

With the standard offset meant to be +57mm, if I get a less offset of say +30mm will the tyres stick out too far and end up scrubbing the outer part of the guards?

Reason I ask is I'm trying to decide whether to buy a set of proper range rover alloys or some steelies that don't seem to come in anything as big an offset as 57mm in P38 stud pattern.

I'm looking for bargain rims here as they won't be dress rims.

Any suggestions? I would probably prefer steelies for off road use I think but not sure.

I live in Sydney and planning on going out to Land Vehicle Spares at Silverdale to see what they have out there.

[PeterAllen]

Welcome to the forum,
I cant help you on the offset question but keep your eye out for wheels on ebay as plent of people change from standard rims to "bling "type rims. (NOt my choice) and I picked up 5 rims with good tyres for $50 each. The wreckers will probably charge you more

[RR P38]

Stock standard HSE has 255/65/16 = 737.87 mm diameter
245/75/16 = 773.68 mm " "

You should be able to manage that on stock rims.
I do recal a post about this tire size i think it was the max that you could go without scrubbing.

[Keithy P38]

You will rub! I have 255-70-16 muddies on mine and I've had to remove the front mudflaps, every now and then on full articulation the rears rub the inner guard, not heaps but enough to see the scuffs afterwards! Your 245-75's are slightly taller than mine, I reckon u could get away with it but you will definitely rub!

[Slunnie]

For the rims, I would try to stick to LR alloys. They are an excellent and strong rim, but importantly they have really good bead retaining ring on the inside of them that stops the tyre from coming off the rim - makes like a bit more difficult for the tyre changers too, but they are some of the best at retaining tyres. Your options for these are 16x7, 16x8 and 18x8 in alloy and a handful of Disco2's came with steel 16x7's also. These are all the same +57 offset. The Disco2 and P38 rims are interchangable.

[parasnoop67]

I am running 265/75/16 bighorns and have removed the front mudflaps and have no trouble with scraping, but on access height it will rub quite a bit.
I just don't try to drive it on access, but in the bush, it flexes well with no problems. I am running Gen 3 as well and have tweaked the two higher settings for a little more clearance. The factory alloys are fine (mine are 8 inch) and if rims were offset further out then scraping would be a problem, particularly at the back of the front wheel arches. Longer bumpstops would also be good.

[Pete38]

OK. Thanks all for your guidance.

Land Rover alloys it will be after hearing the strength and the comments about the bead.

Will definitely stick with the +57 offset otherwise it's bound to scrape by the sound of it... And the look of it.

Hmm 255/70/16 scrape slightly but no big problem, but 265/75/16 don't. I read about previous comments conflicting from car to car so suspected this might be brought up. It's the reason I chose 245/75/16 so I was more on the safe side. I'm not doubting either of you to be honest.

Hey Parasnoop are you running bigger bump stops? I don't want to myself as it'll reduce articulation. Would only use them if I get the 2 inch spacer lift and longer shocks. I'm experimenting with the high setting up an inch with the gen 3 to see whether the extra inch height gained is better than reduced downwards stroke. First thoughts are it doesn't seem to pick wheels off the ground easier so sorta happy.

To be honest I'd prefer 32's in the case I lift the car with the spacer kit supplied from hardrange but as I'm undecided its a difficult one.

I wonder if the tyre shop will let me experiment at a cost of fitting a tyre. Any advice on how to get the car in its worst case to scrub in a tyre dealer? I'm guessing that sitting on the bump stops is not the lowest seeing as the axle is straight. Hmm maybe turn the eas off and let the air out of one side when on the high setting?? Or climb up a customer's car like monster truck style :-)

[Keithy P38]

You could put one front wheel on a hoist pad and raise the hoist! Saves putting k's on a new tyre!

Mine only rubs under full articulation and it's not noticeable in car, only afterwards when I inspect the arches, however I can drive and turn lock to lock no worries in access height.

[wayneg]

I have had 265 70 16 ATs with never a hint of rubbing. I now have 265 75 16`s which are about 70% tread left. I have had very light scrubbing a couple of times on full lock from the front on uneven ground. I still have mudflaps so I suspect they are the contact spot but as yet I cannot see any marks. I would like to keep the flaps and maybe trim a bit off the lower edge if thats where they are rubbing. https://www.aulro.com/afvb/

[Pete38]

I have had 265 70 16 ATs with never a hint of rubbing. I now have 265 75 16`s which are about 70% tread left. I have had very light scrubbing a couple of times on full lock from the front on uneven ground. I still have mudflaps so I suspect they are the contact spot but as yet I cannot see any marks. I would like to keep the flaps and maybe trim a bit off the lower edge if thats where they are rubbing. https://www.aulro.com/afvb/

So did you ever have the tyres on when they were 100% and do any rock climbing or something that made your suspension go right up in the guards? What tyres? Are they AT or MT?

I'm looking at MT so suspect the side lugs may encourage scrubbing and 265/75/16 would be risky. But I'd like to go 265/75/16 in the MT if I can.....

[Pete38]

Ahh. Just read your post again and you said AT's so ignore my question about that. But still curious about the 100% tread part still.

[wayneg]

With the 265 70`s never any issues and my car gets off road a fair bit. If the 265 75`s were new I think they would rub a lot more. I have entered the W4 Challenge in a few weeks (see up coming trips) so should see how the 75`s rub or not on extreme articulation. I run Arnott gen2`s and the ride heights are set a little higher than factory spec.

parasnoop67 is running 265 75 bighorns without to many issues, I would still be cautious if spending big $$ on new rubber, My last outlay was only $200 for a second hand set

[Pete38]

With the 265 70`s never any issues and my car gets off road a fair bit. If the 265 75`s where new I think they would rub a lot more. I have entered the W4 Challenge in a few weeks (see up coming trips) so should see how the 75`s rub or not on extreme articulation. I run Arnott gen2`s and the ride heights are set a little higher than factory spec.

parasnoop67 is running 265 75 bighorns without to many issues, I would still be cautious if spending big $$ on new rubber, My last outlay was only $200 for a second hand set
All valuable advice cheers.

So going off 245/75/16 the diameter is marginally less than 265/70/16 so I shouldn't have any problems, but may rub slightly going off Keithy P38 experience. 265/75/16 will most likely scrub but how bad depends on the shape of the tyre I'm guessing. Yeh yeh I know they are all round but the tread design ha ha.

265/70/16 sounds tempting but its not a very common size so that limits tyre choice for me.

$200 for a set?? Wow thats sooo cheap. No way I'd spend over $1k if i found reasonable tyres anywhere near that price.

[Pete38]

For the rims, I would try to stick to LR alloys. They are an excellent and strong rim, but importantly they have really good bead retaining ring on the inside of them that stops the tyre from coming off the rim - makes like a bit more difficult for the tyre changers too, but they are some of the best at retaining tyres. Your options for these are 16x7, 16x8 and 18x8 in alloy and a handful of Disco2's came with steel 16x7's also. These are all the same +57 offset. The Disco2 and P38 rims are interchangable.

So do all the 16 inch LR alloys that suit a p38 have the bead retaining ring? As in the 16x7 and 16x8 rims that come standard with p38's and also the disco 2 16x7's?

[Slunnie]

So do all the 16 inch LR alloys that suit a p38 have the bead retaining ring? As in the 16x7 and 16x8 rims that come standard with p38's and also the disco 2 16x7's?
The alloys do and this also includes the Disco2 16x8s which you omitted.

I'm not sure about the steels as I've never eyeballed the bead retaining lip on them and I wouldn't take it for granted as they have a different manufacturing technique to the alloys.

[wayneg]

All I can say is when I had my latest tyres fitted 2 weeks back the fitter was not happy once he saw the car and rims. He told how he had broken his machine getting the old tyres of the last time he had worked with Land Rover alloys. Needless to say there was lots of cursing and ear defending as the old tyres were reluctant to let go and the air pressure to get the new tyres over the rib to seal was excessive. All good in the end
Mine are d2 rims, not sure if they are 7 0r 8 inch, they were the cheapest I could find at the time

[Slunnie]

You could put one front wheel on a hoist pad and raise the hoist! Saves putting k's on a new tyre!

Mine only rubs under full articulation and it's not noticeable in car, only afterwards when I inspect the arches, however I can drive and turn lock to lock no worries in access height.
That method wont give you the full range of suspension movement like getting out and driving it will. You can load the suspension to it limits when driving it, and you will also get the deflection in the bushes which the hoist wont give.

[parasnoop67]

So do all the 16 inch LR alloys that suit a p38 have the bead retaining ring? As in the 16x7 and 16x8 rims that come standard with p38's and also the disco 2 16x7's?

The 16x8 certainly have the bead retainer, makes tyre changing a bit harder but you can run low pressure without problems.
I have a set of 245/75 Wrangler mtr's and a set of 265/75 Bighorns, on 2 sets of rims.When I fitted the Bighorns I removed the front mudflaps but at this stage I have standard bumpstops. At highway height the Bighorns touched the mudflaps enough to make me take them off. No problems since. Occasionally when on standard height and on a fair bit of lock with a lot of flex there can be very slight rubbing. No damage though. The Bighorns are 32 inch whereas the Wranglers are only 30 inch so I think that the extra inch under the diffs and door cills is very worthwile.

And the bighorns were $250 ea so I bought a new spare as well.

[Slunnie]

All I can say is when I had my latest tyres fitted 2 weeks back the fitter was not happy once he saw the car and rims. He told how he had broken his machine getting the old tyres of the last time he had worked with Land Rover alloys. Needless to say there was lots of cursing and ear defending as the old tyres were reluctant to let go and the air pressure to get the new tyres over the rib to seal was excessive. All good in the end
Mine are d2 rims, not sure if they are 7 0r 8 inch, they were the cheapest I could find at the time
Its impressive! :D

There is a gap to break the bead. I cant recall if you need to start breaking the bead at the valve or opposite the valve.