Went a little silly on some 33" tyres

[chaybra]

So the day finally came where I got some tyres...admittedly I didnt expect to get ones like this!
It started by testing out some 17" steel rims from dynamic...turns out they didnt fit, it was close, so very close but no banana.


So I thought I would give a shop over in furn tree gully a go and see what 5x120 stock they had lying around. I tried on several different brands and sizes, surprisingly a 17" factory bmw alloy fitted! who would have thought! However they just looked silly...
But the biggest shock was that 90% of the 18" rims we tried wouldnt clear the brakes, it was all down to the thickness of the inner drum, they were just too thick (Thank god I didnt end up importing some from the states) at a last minute trial we grabbed some 20" rims suited for an M5 and discovering the 20" tyres were only $50 each I jumped at it.

The offset is +30, a little much but with a small bit of rubber should fit nicely under the arches. and they now look the business!
A small amount of heat gun to the guards did the trick for clearance and as a precaution I am going to move the washer bottle as it was a little close for comfort at full lock and I am sure they are not cheap if collected by a tyre lug.

At full flex there was a tiny bit of touching at the rear, but bump stops will needed to be added regardless. Oh and I now sound like a spit fighter pilot, tad noisy

[Mr_T]

That does indeed look the business. And that rear wheel carrier is awesome. Cant wait for you to put the design up for sale

[chaybra]

That does indeed look the business. And that rear wheel carrier is awesome. Cant wait for you to put the design up for sale

Thanks, Im still fine tuning the design. they weight of the new tyre has reviled some movement that I want gone

[Tombie]

They look really good!

Whats the load rating on the rims themselves?

[mitchE39]

Are they the atturo trail blade Mt? Really considering them as a second set for my 17's. What are they like?

[Homestar]

Correct me if I'm wrong, but the standard tyres are about 30"? - 265/50/20's I'm running on mine. Just thinking this would make the 33's illegal in Victoria without Engineering approval. Just noting this as you posted in the Bull Bar thread that a modified D3 bar would make your vehcile illegal. Not sure why you think running large tyres is more legal than a non compliant bar?

[chaybra]

Correct me if I'm wrong, but the standard tyres are about 30"? - 265/50/20's I'm running on mine. Just thinking this would make the 33's illegal in Victoria without Engineering approval. Just noting this as you posted in the Bull Bar thread that a modified D3 bar would make your vehcile illegal. Not sure why you think running large tyres is more legal than a non compliant bar?

I will be seeking engineering approval very soon and doubt there will be an issue.
However I just had a thought...The limit for size increase is 2" above standard yeah? This vehicle, as per my tyre placard, came out with 255/55R20 (31" height) would that be considered within legal parameters?

[rar110]

My tyre plate goes up to 255/50/20.

[chaybra]

Are they the atturo trail blade Mt? Really considering them as a second set for my 17's. What are they like?


very very noisy hahaha but boy are they aggressive, if you want performance, light truck strength and people to stare...they are the bees

[chaybra]

Straight from VSB14 Section LS.

Must not be more than 50mm larger or 26mm smaller than that of any tyre designated by the vehicle manufacturer for that vehicle. (Standard 31" tyre should be allowable)

The wheel track of off-road four wheel drive vehicles and goods vehicles (MC, NA, NB ADR category) must not be increased by more than 50mm beyond the maximum specified by the vehicle manufacturer for the particular model (I think the rim offset was actually 34 so below the 50mm)

Is anyone else picking up what I am putting down? This may be legal without inspection

[CSBrisie]

Am I reading this right guys, you can get these tyres in essentaily same size as the 285/50/20 Cooper LTZ's (31.2205 inch) I have on my car (but these ATTURO's are LT strength)?

ATTURO TRAIL BLADE M/T : LT285/50R20E 119/116R (http://www.discounttirezone.com/ATTURO-TRAIL-BLADE-MT-LT28550R20E-119116R_p_9268.html)

"Diameter 31.2" per Link??

[chaybra]

They sure are light truck...tho small side walls :/

Apparently they have also released a 255/55R19 version...Thats what atturo said to me on instagram anyway

[CSBrisie]

wow, very tempting to have as a second set, esp at the price listed!

[Homestar]

I will be seeking engineering approval very soon and doubt there will be an issue.
However I just had a thought...The limit for size increase is 2" above standard yeah? This vehicle, as per my tyre placard, came out with 255/55R20 (31" height) would that be considered within legal parameters?

Yes, you should be right with that then - thanks. Mine shows 255/50/20 so wouldn't be legal on the earlier models then.

Cheers.

[Graeme]

This vehicle, as per my tyre placard, came out with 255/55R20?Are you sure? To my knowledge all L322 sizes are 30".

[chaybra]

Are you sure? To my knowledge all L322 sizes are 30".

Thought it was too good to be true...Turns out I did not have my glasses on and read it incorrectly hahaha, 255/50R20 is 30"...dang, back to getting Vass approval

[RR44TDV8]

Am I reading this right guys, you can get these tyres in essentaily same size as the 285/50/20 Cooper LTZ's (31.2205 inch) I have on my car (but these ATTURO's are LT strength)?

ATTURO TRAIL BLADE M/T : LT285/50R20E 119/116R (http://www.discounttirezone.com/ATTURO-TRAIL-BLADE-MT-LT28550R20E-119116R_p_9268.html)

"Diameter 31.2" per Link??

Yes Chris, you're reading it right!
Exceptional value

[CSBrisie]

Hmmmmm. decisions decisions!!!!!!!


I've got this big trip coming up as a few of you know, and I'd be much happier with LT strength tyres on the back when we tow a heavy caravan across the Plenty Highway.....but the noise factor of MT's for the other 4000kms on bitumen worries me. Damn. What to do......thoughts????


Would these really be worth buying compared to near new LTZ's? I'd keep those ofcourse for when we get back - as everyday tyre. I'm trying to work out whether the slight increase in Load Rating and the LT carcass strength mean I should take the plunge.

[RR44TDV8]

Hmmmmm. decisions decisions!!!!!!!


I've got this big trip coming up as a few of you know, and I'd be much happier with LT strength tyres on the back when we tow a heavy caravan across the Plenty Highway.....but the noise factor of MT's for the other 4000kms on bitumen worries me. Damn. What to do......thoughts????


Would these really be worth buying compared to near new LTZ's? I'd keep those ofcourse for when we get back - as everyday tyre. I'm trying to work out whether the slight increase in Load Rating and the LT carcass strength mean I should take the plunge.

Yeah, I so get your confusion. I'm back at home now and looking to get the tyres that I tried to buy in Perth and these seem too good to be true. I know I just can't live with the noise though.

I just sold a Nissan Navarra ute that was used by my company and it had Mickey T ATZ p3's and they were horrific. They were so bad that it felt like the car was literally coming apart and the noise!!! I swapped them for a set of Kumho ST tyres and the car was brand new again.

I couldn't do this to my Range Rover or myself.

I'm going to go with the LTZ, the new Falken Wild Peak or the Nitto Terra Grappler. I just can't go with the M/T pattern unless it was a Kumho KL71 which I have run on a few Utes and they are significantly more quiet but they are very soft. They also don't come in the right 285/50R20 size!
Chris, I dont think you'll be happy with the M/T on your trip
Rgds
Grant

[Graeme]

They would be the LT with the shortest sidewall of any tyre in any rims size that I've encountered by quite a margin. So just how LT are they yet able to keep the heat from the tread area away from the flexing lower sidewall to survive normal sealed road travel speed?

[CSBrisie]

Yep, think you are right; I dont think that load rating is high enough (compared with LTZ) to warrant the spend. And I'd hate the noise - which means SWMBO would HATE the noise. :D:p

The LTZ's have proven excellent so far so I think I will stick with plan of two new spares on the expo rack and take it nice and easy and hopefully have good and not bad luck on the Plenty. ;)

cheers

[chaybra]

In my opinion, any thing you can get your hands on must be better than the normal road tyres...i slashed 2 in 2 weekends of camping, one from a twig that i repaird and one from a pebble that put a gash in the sidewall the entire length!
I am sick of going 2kmh over gravel from fear of losing another $500 tyre

I am also hoping the new tyres will send me deaf before i get sick of them, I have the VASS engineer looking at them next week, should just be a matter of doing a speedo check and from what my silly phone app is saying the 33" has just "cured" the factory speed offset, engineer seems confident

[chaybra]

So good news on a technicality with the legality of my tyres!

I had taken the spare off and sat it next to the original tyres for some reason, I noticed that the height of the 33" wasnt that much greater than the original, definitely not 75mm taller! So I took out the old tape measure and at 45psi (not on the car) the wheel measured in at exactly 80cm (31.4") mind blown, I knew there were some variations in the manufactures' sizes...but wow

The good news has just come across now that I have restudied the VSB14 document and at no point does it suggest that the increase in tyre size has to be as stamped on the sidewall! I immediately contacted the engineer I have been consulting and presto, he agrees, no inspection is even needed! As it sits (need to put some flares on) it is legal.

Food for thought when buying tyres, they aint always what it says on the tin!

[healey88]

Hey chaybra, what made you go for 20" rims rather than a smaller rim with larger sidewalls? Just curious

[chaybra]

Hey chaybra, what made you go for 20" rims rather than a smaller rim with larger sidewalls? Just curious

All the 18" after market alloy rims that I could find wouldnt fit over the brakes, I think only the factory ones would fit over. 20"s turned out to be only $50 more per corner and look a damn sight better

Also when I found out that they were a light truck construction I wasnt worried about the side wall height

[healey88]

All the 18" after market alloy rims that I could find wouldnt fit over the brakes, I think only the factory ones would fit over. 20"s turned out to be only $50 more per corner and look a damn sight better

Also when I found out that they were a light truck construction I wasnt worried about the side wall height



yea fair enough, I got lucky and picked up a second hand set of 5 factory 18" rims for $400.
Having the light truck rating would be nice though :D

[chaybra]

yea fair enough, I got lucky and picked up a second hand set of 5 factory 18" rims for $400.
Having the light truck rating would be nice though :D

When you get a chance, measure your 33's and see how they really sit! It would be interesting

[healey88]

When you get a chance, measure your 33's and see how they really sit! It would be interesting



Sooooo, manufacturer specs of the tyre show 817mm OD (32.2"). I haven't had a chance to measure my spare off the car but the tyres on the car now are sitting at 785mm (30.9").


So 1" loss, although I haven't put air in them in a few months...

[Landover]

I would think these cars have stability and traction control, I thought it was illegal to change the track width with these features as it changes the parameters for the vehicle.

[chaybra]

I would think these cars have stability and traction control, I thought it was illegal to change the track width with these features as it changes the parameters for the vehicle.
VSB14 Section LS:- "Persons wishing to modify vehicles equipped with ESC must contact their Registration Authority for further information and guidance." and upon speaking with said registration authority (Vass Engineer) he deems that a small track width modification was negligible to ESC functionality.
Its very open to interpretation this world

[4x4instyle]

Hi Guys, New Here.
Ive just had a set of Coopers AT3's 275/65R18 fitted. Was a bit concerned with how aggresive they are and thought they might be very noisy but cant hear them super happy. Have a little scrubbing but will be fitting lift rods to the air suspension so that will give me Off road height as the STD ride height.
Can get the lift rods for $200 but might have to have a go at making some myself first. Will keep you posted. As well as my pogression on the H/D Side step/rock sliders, comming on nicelly.

[rar110]

Hi Guys, New Here.
Ive just had a set of Coopers AT3's 275/65R18 fitted. Was a bit concerned with how aggresive they are and thought they might be very noisy but cant hear them super happy. Have a little scrubbing but will be fitting lift rods to the air suspension so that will give me Off road height as the STD ride height.
Can get the lift rods for $200 but might have to have a go at making some myself first. Will keep you posted. As well as my pogression on the H/D Side step/rock sliders, comming on nicelly.

I think GOE rods fit. 815mm is quite tall. Do you have pics?

[chaybra]

Hi Guys, New Here.
Ive just had a set of Coopers AT3's 275/65R18 fitted. Was a bit concerned with how aggresive they are and thought they might be very noisy but cant hear them super happy. Have a little scrubbing but will be fitting lift rods to the air suspension so that will give me Off road height as the STD ride height.
Can get the lift rods for $200 but might have to have a go at making some myself first. Will keep you posted. As well as my pogression on the H/D Side step/rock sliders, comming on nicelly.


How are you mounting the sliders? I am too going down this path but cannot decide!

I made some lift rods myself (well plates) It allows for some extra flex too, Ill put some photos up soon, very veryvery simple and cost less that $5

[healey88]

How are you mounting the sliders? I am too going down this path but cannot decide!

I made some lift rods myself (well plates) It allows for some extra flex too, Ill put some photos up soon, very veryvery simple and cost less that $5

I'd love to see how you did it. I have the IID tool but I think new rods is a better solution.

[landie56]

Hi.
Were did you buy those lift rods from might do that to my Range Rover.

Sent from my GT-I9505 using AULRO mobile app

[chaybra]

Hi.
Were did you buy those lift rods from might do that to my Range Rover.

Sent from my GT-I9505 using AULRO mobile app

Bunnings haha