Thread: Won’t be retro...

Originally Posted by ozscott

Vern the problem is that LR on say D5 with 18's I thought have far less than 33 as standard. As such you get less rubber and ability to air down compared to 18 running 33 OD. Also we are limited by how much we can legally go up. I hate to say it but the new Rubicon 33 stock tyre on 16 inch rims shows Jeep know and are sticking to proper offroad set ups...

Cheers

Jeep also know how to get a 1 star safety rating (JL) , no way I would be driving my family around oz in one.

Ill take 18s on a new Defender anyday, im guessing it will get a 5 star safety rating like the D5.

Land Rover Discovery enters the local market with 5 star safety. | ANCAP

Originally Posted by Zeros

As I say, IMO - Tall narrow tyres are better off road. Tyres wider are better on road.

Table below shows Defender tyres are slightly taller overall and side walls are 27mm taller.

	265/65-18	235/85-16
Width inches (mm)	10.43 (265)	9.25 (235)
Circum. inches (mm)	99.16 (2518.61)	99.68 (2531.81)
Sidewall Height inches (mm)	6.78 (172.25)	7.86 (199.75)
Revolutions per mile (km)	638.98 (397.04)	635.65 (394.97)

Looks like we both punched the numbers in wrong, that why I edited my post, was too tired to correct it
Patrol tyre is 265/70/18.

Running the wrong type of tyre for the road conditions also significantly reduces safety.

As an example,think high speed dirt roads,which are very common here in Aus.

Thats why the OEM 19" tyre size for the D4 had so many well documented complaints,there isn't a suitable high load rated off road tyre of similar size available that would fit the rim.

Its only in the last few years that high load rated off road tyres have been readily available for the D3/4 18" rim without going larger than the OEM diameter size.

Originally Posted by Vern

Looks like we both punched the numbers in wrong, that why I edited my post, was too tired to correct it
Patrol tyre is 265/70/18.

70 percent of 265 would be fine (on any rim)..but I very much doubt any new LR would have that as standard. Also on the beach a 245/80/16 would have the edge there aired down (longer footprint) but I would be happy with a compromise of 265/70/18. But we know that LR have run in the past 255/60/18 which has a much lower sidewall than a 265/70/18. For many years Nissan have well understood the importance of sidewall height for offoading and have not compromised on that. LR have to the betterment of on road handling and to save unsprung weight (and cost too i suspect). I would be happy if tbe new Deefer ran 18's with big sidewall like the Nissan but cant imagine they will. Cheers

Cheers

Originally Posted by scarry

Running the wrong type of tyre for the road conditions also significantly reduces safety.

As an example,think high speed dirt roads,which are very common here in Aus.

Thats why the OEM 19" tyre size for the D4 had so many well documented complaints,there isn't a suitable high load rated off road tyre of similar size available that would fit the rim.

Its only in the last few years that high load rated off road tyres have been readily available for the D3/4 18" rim without going larger than the OEM diameter size.

Spot on, its seems that that legacy is sticking around in some peoples minds even though its no longer an issue.

Good article here, where they admit they had to change their position on lower profile tyres as tyre manufactures caught up

Low Profile Tyres don't belong on 4WDs

Tyres on this mule look to be 65 profile which is a good size for a safe tourer that can hold its own on the blacktop in an emergency both with braking and swerving but still not have a problem offroad.

Having said that, I don't know anyone that heads off-road and keeps the same tyre as stock so I would say people that want even more bias towards off-road in the new Defender will find a way to fit even higher profiles pretty quickly.

Nissan and Land Rover are ahead of the game here. Jeep are for some reason living in the dark ages where the vehicle occupant safety of your family doesn't seem to matter. It does seem in their defence that America seems to not focus as much on car safety, rather performance and looks.

"Oddroading". I know a few people that do that...
Looking at the myriad spy pics I think it'd be reasonable to assume tyre diameter around the 31-32" mark (ie. Rest-of-range size to +1") so an 18" would still have reasonable sidewall (as pictured). Plenty on here even running 20s *gasp* offroad at that sort of size. A bit compromised for the harder-core but still works pretty well all round. I'd say that 18s aren't the end of the world at all. I wouldn't fit them to my D1 by choice, but don't need to either. I put 15s on for a while, but then went back to the 16s and just increased tyre diameter by 1" to maintain sidewall.

Haha. Predictive text. Fixed.

No I agree it's it 18s per se but why I'm against them in the JLR context is that unlike Nissan, JLR don't do standard tyre heights to make them reliable and great off-road. I might well be in the market again if LR put decent stock rubber on the new Deefer. But...we will see.

Cheers

Originally Posted by DiscoMick

Yep, that's the one. Doesn't that look like a dual cab with a fake box on the rear?

It definitely could be, however could also be trying to be hiding the rear design. Glass panel?

Here's another shot from the other side, i have no idea what's going on here? Where the door meets the rear panel.