Thread: Pro/Cons of wider tyres (245 vs 265 on a stock D2)

OK so final (I hope) questions around this.

Having read all the ADR/NCOP/documents I'm getting a serious case of brain ache, is it actually legally possible to put 235/85/16 on a D2 as the tyre diameter is more than 50mm greater from a factory fitted tyre option?

Or is it the case that you need to get an engineer sign off for that (I'm in WA), and if that's the case I might as well chuck a 2inch lift on at the same time and get the whole lot done?

Is engineering sign off difficult/expensive?

"Legally" you cannot fit 235/85-16 (32") tyres on a D2 without engineering.

However, I really don't know why everyone gets so uptight about tyres and engineering. When has anyone heard of someone getting pinged for running 32"tyres. I know I never have. I was pulled over for a random RWC check in the D2 running 32" MTR's and it passed without a problem. I was pulled over 2 weeks ago for a RBC and at the same time they had a good look around the vehicle. I was running 285/75-16 (33").

Just run the tyres and don't worry about it

Originally Posted by jakestride

OK so final (I hope) questions around this.

Having read all the ADR/NCOP/documents I'm getting a serious case of brain ache, is it actually legally possible to put 235/85/16 on a D2 as the tyre diameter is more than 50mm greater from a factory fitted tyre option?

Or is it the case that you need to get an engineer sign off for that (I'm in WA), and if that's the case I might as well chuck a 2inch lift on at the same time and get the whole lot done?

Is engineering sign off difficult/expensive?

Hi
No it is not legal. Tyre size is max 50mm. You have to get it engineered. The lift up to 2 inches can be done without approval, over that requires engineering.
The form can be downloaded from the dot website, pages of crap to fill out, send off and wait for reply. This will give you preapproval, you then do mods and take to approved engineer who will charge you lots of money to do a brake and possibly a swerve test, about $1600 somewhere if both are required.
Pm me and we can chat in person if you want.

Cheers
Kev

Originally Posted by walker

"Legally" you cannot fit 235/85-16 (32") tyres on a D2 without engineering.

However, I really don't know why everyone gets so uptight about tyres and engineering. When has anyone heard of someone getting pinged for running 32"tyres. I know I never have. I was pulled over for a random RWC check in the D2 running 32" MTR's and it passed without a problem. I was pulled over 2 weeks ago for a RBC and at the same time they had a good look around the vehicle. I was running 285/75-16 (33").

Just run the tyres and don't worry about it

I'm a Pom. It's in my blood to worry, and queue.

But yes I guess your right

Originally Posted by walker

"Legally" you cannot fit 235/85-16 (32") tyres on a D2 without engineering.

However, I really don't know why everyone gets so uptight about tyres and engineering. When has anyone heard of someone getting pinged for running 32"tyres. I know I never have. I was pulled over for a random RWC check in the D2 running 32" MTR's and it passed without a problem. I was pulled over 2 weeks ago for a RBC and at the same time they had a good look around the vehicle. I was running 285/75-16 (33").

Just run the tyres and don't worry about it

Because our coppers and dot over here are very anal. Last I heard they weren't doing any swerve testing because they rolled a land cruiser.

And if you are not legal, if you crash and the crash can be attributed to your illegal mods, no insurance, and possibly criminally responsible if someone is hurt...it's a very good reason to be legal.

Originally Posted by TD50WA

Hi
No it is not legal. Tyre size is max 50mm. You have to get it engineered. The lift up to 2 inches can be done without approval, over that requires engineering.
The form can be downloaded from the dot website, pages of crap to fill out, send off and wait for reply. This will give you preapproval, you then do mods and take to approved engineer who will charge you lots of money to do a brake and possibly a swerve test, about $1600 somewhere if both are required.
Pm me and we can chat in person if you want.

Cheers
Kev

Thanks Kev - she the engineering is so much if it was a few hundred bucks I'd defo go for it but seems a bit steep to add on top of a set of tyres and a lift!

Will drop you a PM - don't suppose anybody has suggestions of a land rover friendly engineer in Perth?

Unfortunately the dot has a list of approved engineers, so choice is limited, but I'm sure there will be one who is a lr fan.....

Wow. you guys really do get stiffed over there. Anal cops and huge costs for engineering, I am feeling good here in Melbourne

I converted a Range Rover into a ute, added 4" lift, 33" tyres and a larger engine and the entire engineering cost me $800.