Help on identifying the GT86 Aero Ultraleggera's

[shellcool 0]

Hey I'm looking to buy a new set of Ultraleggera's for my aero, all I can find is everyone using 18" x7.5J ET48 I've checked my wheels and they all say ET46, yet I can't find ET46's anywhere online?

I can't figure out what exact wheels I've got and how to order these exact wheels, reviews call the wheels on the GT86 Anthracite grey but OZ seem to not sell this colour and call them Graphite Silver instead, is this a match?

OZ's site https://www.ozracing.com/uk/alloy-wheels/oz-racing/sport/ultraleggera

I think the full name for my wheels would be "18 inch Anthracite grey oz Ultraleggera"

https://www.wheelbasealloys.com/alloy-wheels/oz-racing/ultraleggera/graphite/18-inch/toyota/gt86/2012-present For example this site just lists them as Graphite and their site doesn't allow you to choose and Aero if it even makes a difference

This site lets me choose between 7.5J and 8J, assuming mine are 8J (EDIT MINE ARE 7.5J!!) https://www.lkperformance.co.uk/wheels/oz-racing/12292-ultraleggera-matt-graphite-silver?vehicle=1546&rim_size=18

 

 

Secondly I can't seem to find any "ET46" only ET48's I think the car needs ET44 anyway, the wheels need to be pushed out a bit IMO, stock Aero, surely buying 48's would be risky

 

Any advice would be great and if anyone is selling a set in good nick hit me up, I'm also willing to sell my set now or at a later date, ones buckled (quite bad lol)

[sam534 62]

Are you looking to replace all of them or just a single one? If your looking to replace all then you can go with whatever specs you like. If you want to replace one it sounds like you've got a challenge, if the colour is the same you could buy at et48 and use a 2mm spacer, maybe.

Sent from my COL-L29 using Tapatalk

[will300 812]

The first model year of the Aero (might be the 1st and 2nd year cars) came with the OZ wheels, which was a limited OEM run. After this first (or second) year Toyota swapped the Aero wheels to a generic 86 wheel.

They weren't available to buy though distributors which is why you can't find any with a ET46 offset.

If your looking to buy a brand new set, these are the wheel specs I'd go with:

[gavin_t 184]

As will said they swapped to an in house supplied 18 inch wheel on the later aero's. Shame as the OZ were a lovely touch.

I would say the options are:
You could see if Toyota could source you one although I suspect it will be big bucks and will depend if they have one anywhere.

run an ET48 wheel with a 2mm spacer, although other things like colour match etc may also be off.

replace all 4 with a wheel of your choice

Repair the alloy, a specialist would be able to quote and say if it is safe and possible.

[shellcool 0]

Hello lads thank you for the replys!

I'll look into the cost of repair for the wheel that's damaged + maybe looking at the other ones see if they could do with a repair too, this wouldn't be high on my priority list though as i'd probably feel better getting a new set.

I'll look into to either asking Toyota for 2 wheels, I'll compare the price of these two from Toyota to a brand new set of 4.

If that's not possible I would be buying a brand new set of 4 from a good seller, hopefully, they are a very similar colour, if not I'll just get them powder coated or whatever they do to match the originals and then selling my 3 good + one bad

My Aero is one of the 64 plates, so had OZ's from factory

8 hours ago, sam534 said:

Are you looking to replace all of them or just a single one? If your looking to replace all then you can go with whatever specs you like. If you want to replace one it sounds like you've got a challenge, if the colour is the same you could buy at et48 and use a 2mm spacer, maybe.

Sent from my COL-L29 using Tapatalk
 

If I can't get two from Toyota I'd get a new set of 4 for sure, putting spacers on one side would make it feel like a bad job XD I'd never live with that, If the colour doesn't match to originals even if I get all 4, hell I'd happily get them coated lol, I had the exact spec as my background on my PC for 3 years before I got it  big fanboy of my own car before i owned it XD 

3 hours ago, will300 said:

The first model year of the Aero (might be the 1st and 2nd year cars) came with the OZ wheels, which was a limited OEM run. After this first (or second) year Toyota swapped the Aero wheels to a generic 86 wheel.

They weren't available to buy though distributors which is why you can't find any with a ET46 offset.

If your looking to buy a brand new set, these are the wheel specs I'd go with:

I didn't even think of Demon tweeks, I'd feel so safe going with them

What does the "offset 35"  mean? is that similar to "ET46"?

2 hours ago, gavin_t said:

As will said they swapped to an in house supplied 18 inch wheel on the later aero's. Shame as the OZ were a lovely touch.

I would say the options are:
You could see if Toyota could source you one although I suspect it will be big bucks and will depend if they have one anywhere.

run an ET48 wheel with a 2mm spacer, although other things like colour match etc may also be off.

replace all 4 with a wheel of your choice

Repair the alloy, a specialist would be able to quote and say if it is safe and possible.

I'd need to source two from Toyota for under £1300 minus the price I get for my 3 good wheels and 1 bad wheel selling to someone, so probably doable lol

The company called LK performance said (for a gt86 (not aero exactly)) "18x7.5 ET48 standard according to our systems, so 18x8 ET48 will extend 6mm more outward"

I trust their math is correct with the 6mm, and I think that'd look okay as long as it was legal?

[shellcool 0]

3 hours ago, will300 said:

The first model year of the Aero (might be the 1st and 2nd year cars) came with the OZ wheels, which was a limited OEM run. After this first (or second) year Toyota swapped the Aero wheels to a generic 86 wheel.

They weren't available to buy though distributors which is why you can't find any with a ET46 offset.

If your looking to buy a brand new set, these are the wheel specs I'd go with:

do you think this colour matches more? problem is i can only select 48 offset not 35? 😕

[will300 812]

Offset in simple terms is how far the wheel sits in the arch. A lower offset (+35) will sit out further than a higher offset (+46). 

Using this calculator you can adjust the wheel dimensions to see how it fits on the car.

https://www.ft86motorsports.com/wheelitfit/

With reguards to the above photo, I just clicked on the first colour I saw. Although doing a quick search if not sure if they do the Ultraleggera with a +35 offset in Matt Graphite. You'd have to speak to DemonTweeks directly.

 

 

[shellcool 0]

55 minutes ago, will300 said:

Offset in simple terms is how far the wheel sits in the arch. A lower offset (+35) will sit out further than a higher offset (+46). 

Using this calculator you can adjust the wheel dimensions to see how it fits on the car.

https://www.ft86motorsports.com/wheelitfit/

With reguards to the above photo, I just clicked on the first colour I saw. Although doing a quick search if not sure if they do the Ultraleggera with a +35 offset in Matt Graphite. You'd have to speak to DemonTweeks directly.

 

 

"Offset in simple terms is how far the wheel sits in the arch. A lower offset (+35) will sit out further than a higher offset (+46). "

 

This makes sense for a negative offset car? mine seems positive offset so mines reversed? Smaller number = wheel coming closer to car?

ATM mine is a ET46, so if I go to ET48 the wheels get 2mm more into the car, I think?

 

[Deacon 1357]

1 hour ago, shellcool said:

"Offset in simple terms is how far the wheel sits in the arch. A lower offset (+35) will sit out further than a higher offset (+46). "

 

This makes sense for a negative offset car? mine seems positive offset so mines reversed? Smaller number = wheel coming closer to car?

ATM mine is a ET46, so if I go to ET48 the wheels get 2mm more into the car, I think?

 

The lower the offset the further out of the arch the wheel goes.

On the picture below you can see the difference (just) - a +48 offset will bring the wheel 2mm closer to the strut and 2mm further into the car than a +46 offset.

The offset @will300 has suggested is a good offset for an 18x8" wheel to help fill the arch a little better

As you can see on the picture the +35 offset will push the wheel further away from the strut and so further outwards

[Church 209]

Most cars have positive offset wheels, due usually brakes & wheel hub being somewhere in the middle, so offset (which is distance from disk contact with wheelhub to wheel center line) is positive due wheel contacting hub from outside. It's hard to name without extensive search modern car with negative (very "deep dish", past wheel center line) offset wheels. Maybe only some widebody atrocity but with custom very narrow but flush to that widebody wheels.

The bigger the (positive offset) number, the more wheels are tucked in and vice versa, less offset wheels are spaced more outside. Suggest to not go overboard with too big of offset change, as it may affect eg. scrub radius.

So in your example ET48 wheels of same width will be 2mm more into car vs ET45, yes. Little change to handling, maybe looks will suffer a bit, but again, little, if noticeable at all. Imho worth to keep offset change with aftermarket wheels less then 1cm. 2mm should be fine.

[shellcool 0]

44 minutes ago, Deacon said:

The lower the offset the further out of the arch the wheel goes.

On the picture below you can see the difference (just) - a +48 offset will bring the wheel 2mm closer to the strut and 2mm further into the car than a +46 offset.

The offset @will300 has suggested is a good offset for an 18x8" wheel to help fill the arch a little better

As you can see on the picture the +35 offset will push the wheel further away from the strut and so further outwards

Thank you so much for the explanation, I was a bit confused between negative and positive "ET", I'll just see what happens and I'll have to decide if I want to buy 48's + 2mm spacers to keep it 46 like Toyota put, or maybe I'll look into getting bigger spacers like 5mm after I read some in-depth stuff on if it's a bad thing to do, but spacers make it easily changeable, which I like the idea of

 

37 minutes ago, Church said:

Most cars have positive offset wheels, due usually brakes & wheel hub being somewhere in the middle, so offset (which is distance from disk contact with wheelhub to wheel center line) is positive due wheel contacting hub from outside. It's hard to name without extensive search modern car with negative (very "deep dish", past wheel center line) offset wheels. Maybe only some widebody atrocity but with custom very narrow but flush to that widebody wheels.

The bigger the (positive offset) number, the more wheels are tucked in and vice versa, less offset wheels are spaced more outside. Suggest to not go overboard with too big of offset change, as it may affect eg. scrub radius.

So in your example ET48 wheels of same width will be 2mm more into car vs ET45, yes. Little change to handling, maybe looks will suffer a bit, but again, little, if noticeable at all. Imho worth to keep offset change with aftermarket wheels less then 1cm. 2mm should be fine.

I feel like I'm leaning more towards 48's with 2mm spacers, this seems like the easiest way to keep the car having parts that are easier to get ahold of and how it came out the factory, I'm going to assume there's no difference between having a ET46 wheel and a ET48 + 2mm spacer, thanks for the help, I didn't want to adjust the car much atall

[Church 209]

2mm .. seems too small of a difference to care for. I'd think of adding 2mm spacer only in case if changing just one wheel. But if both on axle are same, i'd leave it as is.

[shellcool 0]

29 minutes ago, Church said:

2mm .. seems too small of a difference to care for. I'd think of adding 2mm spacer only in case if changing just one wheel. But if both on axle are same, i'd leave it as is.

Thinking about it maybe getting two 48's shoving them on the back, and put the best two 46's on the fronts
I've been trying to find any Aero's that came with ET46's I need to start a new thread just begging all Aero with OZ owners to check their ET's for me lol

I honestly can't find a single 18 inch OZ Ultraleggera with a ET46 offset, My car was a review car so I'm starting to think they are like a "pre-final choice" offset on my car only lol.

[Deacon 1357]

17 minutes ago, shellcool said:

Thinking about it maybe getting two 48's shoving them on the back, and put the best two 46's on the fronts
I've been trying to find any Aero's that came with ET46's I need to start a new thread just begging all Aero with OZ owners to check their ET's for me lol

I honestly can't find a single 18 inch OZ Ultraleggera with a ET46 offset, My car was a review car so I'm starting to think they are like a "pre-final choice" offset on my car only lol.

It's what @will300 said - they were a batch made specifically for Toyota. They don't exist in that offset on general sale

[shellcool 0]

30 minutes ago, Deacon said:

It's what @will300 said - they were a batch made specifically for Toyota. They don't exist in that offset on general sale

Ahhh, so I'll look for crashed cars/breaking cars and have a look then, I've got until summer starts

seems horrible of Toyota to pull that one on us NGL

do you think putting two good 46's on the front and buying two new 48's for the back would be a BAD idea or just "meh"?  as a get out of jail free/easy method of getting around this

[Varelco 211]

If you are going down that route put the 46 on the back. The rear arches are larger than the front and swallow up more wheel. I have 5mm wider spacers on the rear than the front to get them to look the same. 

[sam534 62]

Yes pal that would be fine as long as each axle is equal.

Most tend to go for et35 with 8 inch wide wheel which is 11mm further out, you can put a ruler or tape measure and check to see if yiud be happy with the offset. But I like your plan of getting 2 new wheels, likely they will be slightly different colour so budget 250 for a refurb

Sent from my COL-L29 using Tapatalk

[shellcool 0]

10 minutes ago, sam534 said:

Yes pal that would be fine as long as each axle is equal.

Most tend to go for et35 with 8 inch wide wheel which is 11mm further out, you can put a ruler or tape measure and check to see if yiud be happy with the offset. But I like your plan of getting 2 new wheels, likely they will be slightly different colour so budget 250 for a refurb

Sent from my COL-L29 using Tapatalk
 

Yea, I'm thinking et35, 8.0 on back, keep the two ET46 7.5 on the front? Yea I'd just get all 4 painted potentially, that's not too much of an issue I just Wana get wheels on the car lol

[Varelco 211]

2 hours ago, shellcool said:

Yea, I'm thinking et35, 8.0 on back, keep the two ET46 7.5 on the front? Yea I'd just get all 4 painted potentially, that's not too much of an issue I just Wana get wheels on the car lol

That will look odd, 8j et35 on the back will stick out 17mm further than the fronts. I would add 15mm spacers up front.

[shellcool 0]

2 hours ago, Varelco said:

That will look odd, 8j et35 on the back will stick out 17mm further than the fronts. I would add 15mm spacers up front.

Sorry if I put the two good 18" 7.5J ET46 on the front and two new 18" 8.0J ET48 on the rear? Would that make more sense, sorry Im sturggling to think at the moment 

[gavin_t 184]

I think if it was me and the one buckled wheel could not be repaired I would buy a new set of 4 all in the same offset and then sell the remaining good 3.

 

Will provide good piece of mind knowing that they are all the same and will be economical when you factor in the money back on the sale of the old wheels.

As @Deacon said 18x8 et35 is a nice fit for the GT86 or if you want to keep the factory fit they come in ET48 and been half an inch wider will be more or less the OEM fit and look.

 

Certainly see if the wheel can be repaired first. If the buckle is not too severe if should repair well at a repretable place given it is a good quality wheel to start with.

[shellcool 0]

8 hours ago, gavin_t said:

I think if it was me and the one buckled wheel could not be repaired I would buy a new set of 4 all in the same offset and then sell the remaining good 3.

 

Will provide good piece of mind knowing that they are all the same and will be economical when you factor in the money back on the sale of the old wheels.

As @Deacon said 18x8 et35 is a nice fit for the GT86 or if you want to keep the factory fit they come in ET48 and been half an inch wider will be more or less the OEM fit and look.

 

Certainly see if the wheel can be repaired first. If the buckle is not too severe if should repair well at a repretable place given it is a good quality wheel to start with.

I poped into a local shop, they have a place they send wheels too for £60 each (did sound too cheap), they take the wheel to the place, the place either say it's worth trying or not and you pay after, he did warn me that OZ's are the worst offender for being rejected an attempted repair due to the risk of breaking, the guy at the shop isn't the guy that repairs them or even sees the guy that repairs them, but he said it looked like it had a chance of being repaired lol.

However, he did give the Advice of putting the repaired wheels on the back to reduce loads, if they get repaired. (cornering I guess)

but yea, If it gets repaired that's great, if not, I'll probably ask the wheel shop guys about recommendations, he did seem sceptical about 18x8 ET35 fitting inside, but they don't do the colour I want in ET35 anyway, so It might end up with a set of 48's and a decent brand of 5mm spacers, or I buy a set of ET35's in the wrong colour and get them painted IDK