2.0T Wheel upgrade specs

[StingerBee]

Hi Everyone,

I've just ordered 2.0T Stinger and I'm staying in Singapore. It's comes with the 18" wheels, non staggered and no brembo. I believe it is 18x8 +45 225/45/18. It is not flushed with the fender. I'm intending to replace with aftermarket 18 or 19" wheels and also upgrade the brakes. I need some advice on what specs of 18" and 19" I can go for to have a flush look and also at the same time give me options to install a big brake kit.

18"
Front 18x8.5 +30? 225/45/18?
Rear 18x9 +30? 255/40/18?

19"
Front 19x8.5 +30? 225/40/19?
Rear 19x9 +30? 255/35/19?

I am hoping someone can advise so that I can start to do wheels shopping in Singapore. Please help.

 

[Robs]

Offset for the stock 18” is +34, pretty flushed already.

 

[Robs]

Hi Everyone,

I've just ordered 2.0T Stinger and I'm staying in Singapore. It's comes with the 18" wheels, non staggered and no brembo. I believe it is 18x8 +45 225/45/18. It is not flushed with the fender. I'm intending to replace with aftermarket 18 or 19" wheels and also upgrade the brakes. I need some advice on what specs of 18" and 19" I can go for to have a flush look and also at the same time give me options to install a big brake kit.

18"
Front 18x8.5 +30? 225/45/18?
Rear 18x9 +30? 255/40/18?

19"
Front 19x8.5 +30? 225/40/19?
Rear 19x9 +30? 255/35/19?

I am hoping someone can advise so that I can start to do wheels shopping in Singapore. Please help.

Those options should fit ok provided you don’t intend to lower the car. Front tires you could go up to 235, which is what the GT 19” wheels are on.

 

[StingerBee]

View attachment 4362 Offset for the stock 18” is +34, pretty flushed already.

Robs I don't think my KIA at Singapore give us such a nice offset of +34. It doesn't look flush like yours.

 

[Robs]

Congrats by the way! What exterior and leather colours did you get?

 

[Robs]

Robs I don't think my KIA at Singapore give us such a nice offset of +34. It doesn't look flush like yours.

They are! Yellow one was beside mine when collected from C&C last week. Took the wheels off to test-fit my old wheels and thats when i discovered the offset, kudos to Kia!

 

[StingerBee]

For front and rear, do I need different offset? Or just play with wider rims+tires?

 

[Robs]

For front and rear, do I need different offset? Or just play with wider rims+tires?

Rears you could go more aggressive with offset but i would wait and see what others are doing or have done. If your shop has stock and is willing to test-fit for you, that would be the best and safest way to go. With a new set I would go 20"s though!

 

[StingerBee]

Rears you could go more aggressive with offset but i would wait and see what others are doing or have done. If your shop has stock and is willing to test-fit for you, that would be the best and safest way to go. With a new set I would go 20"s though!

20" on the 2L may be an overkill I feel. Would make the ride more sluggish esp with traffic. 19" is probably the max I would go for.

Must the rear be at a different offset from the front in order to be flushed at the back too?

 

[Robs]

20" on the 2L may be an overkill I feel. Would make the ride more sluggish esp with traffic. 19" is probably the max I would go for.

Must the rear be at a different offset from the front in order to be flushed at the back too?

Dont think so, even though its the same wheel spec all round on the 18"s, the rears seem nice and flushed as well, probably thanks to the rear geometry they do track wider than the fronts do.

 

[StingerBee]

Dont think so, even though its the same wheel spec all round on the 18"s, the rears seem nice and flushed as well, probably thanks to the rear geometry they do track wider than the fronts do.

That's good to know. So basically stagger with width but maintain same offset front and rear.

 

[Robs]

That's good to know. So basically stagger with width but maintain same offset front and rear.

Yep, 30 offset is pretty aggressive already.

 

[Robs]

Rear 18” for reference

 

[StingerBee]

View attachment 4364

Rear 18” for reference

Robs I forgot to reply u that I chosen blue outside and red inside.

This pic is the stock 18" at +34 offset?

Seemed like there's only little room to push out more. +30 should fit pretty well.

Also it also seemed that front and rear do not need staggerred to be flushed.

 

[Robs]

Offset +34 all four corners on stock 18” Type B wheels. +30 all around should be just nice and might allow for lowering if you want to consider that. Micro Blue or Deep Chroma Blue?

Robs I forgot to reply u that I chosen blue outside and red inside.

This pic is the stock 18" at +34 offset?

Seemed like there's only little room to push out more. +30 should fit pretty well.

Also it also seemed that front and rear do not need staggerred to be flushed.

 

[StingerBee]

Offset +34 all four corners on stock 18” Type B wheels. +30 all around should be just nice and might allow for lowering if you want to consider that. Micro Blue or Deep Chroma Blue?

View attachment 4380

Micro blue

 

[mev202]

Don't forget if you change the rim size, you'll need to reconfigure the ECU for abs, TC, and speedometer.

 

[StingerBee]

Don't forget if you change the rim size, you'll need to reconfigure the ECU for abs, TC, and speedometer.

Sounds troublesome. Who can do the reconfiguration? Kia service center?

 

[sean888]

Don't forget if you change the rim size, you'll need to reconfigure the ECU for abs, TC, and speedometer.

This is nonsense which is why people on forums like this confuse with their unqualified mis information and ignorant one liner comments which explain nothing.

When upgrading wheels and tyres there are a few critical issues to cover aside from the usual suspension, brake and body clearance issues............

1. You need to keep the replacement tyre as close as possible in diameter as the original equipment tyre size fitment. So you go down in tyre profile from say 45 to 40 or to 35, as you go up in wheel diameter from say an 18 to 19 inch. By keeping the replacement tyre diameter the same or very close to the original fitment you retain your speedo accuracy and you are not affecting any systems on the car that are measuring wheel speed.
So for example, if replacing your 225 45 18 stock wheels +tyres with a wider rear in 255 35 19 these are the diameters:
Stock TYRE on stock 18 inch wheel: 225 45 18 659 mm tyre diameter
Replacement TYRE on new 19 inch wheel: 255 35 19 661 mm tyre diameter ( A 255 40 19 at 687 mm is too large).

2. You need to keep the tyre diameters front and rear as close as possible (as are all the stock Stinger 18 and 19 inch tyre sizes used across the model variants). If there is a significant enough variation between front and rear tyre diameters - unless specifically set up that way by the manufacturer's original tyre and wheel choices and programming - the wheel sensors will record different rotation speeds front and rear and it will play havoc with the stability control program on the car.

If you are not too concerned about your speedo accuracy, and you are not breaking any local laws, you can always go with a slightly larger tyre diamater than stock provided there are no clearance issues but you need to ensure that your front and rear tyre diameters are closely matched.

 

[StingerBee]

This is nonsense which is why people on forums like this confuse with their unqualified mis information and ignorant one liner comments which explain nothing.

When upgrading wheels and tyres there are a few critical issues to cover aside from the usual suspension, brake and body clearance issues............

1. You need to keep the replacement tyre as close as possible in diameter as the original equipment tyre size fitment. So you go down in tyre profile from say 45 to 40 or to 35, as you go up in wheel diameter from say an 18 to 19 inch. By keeping the replacement tyre diameter the same or very close to the original fitment you retain your speedo accuracy and you are not affecting any systems on the car that are measuring wheel speed.
So for example, if replacing your 225 45 18 stock wheels +tyres with a wider rear in 255 35 19 these are the diameters:
Stock TYRE on stock 18 inch wheel: 225 45 18 659 mm tyre diameter
Replacement TYRE on new 19 inch wheel: 255 35 19 661 mm tyre diameter ( A 255 40 19 at 687 mm is too large).

2. You need to keep the tyre diameters front and rear as close as possible (as are all the stock Stinger 18 and 19 inch tyre sizes used across the model variants). If there is a significant enough variation between front and rear tyre diameters - unless specifically set up that way by the manufacturer's original tyre and wheel choices and programming - the wheel sensors will record different rotation speeds front and rear and it will play havoc with the stability control program on the car.

If you are not too concerned about your speedo accuracy, and you are not breaking any local laws, you can always go with a slightly larger tyre diamater than stock provided there are no clearance issues but you need to ensure that your front and rear tyre diameters are closely matched.

Thank you so much Sean. This is the first time I've heard of this and I think what you said make sense. This must be the reason why my previous car speedo is always not accurate and I need to make some bias adjustment when I'm near a known speed camera. Knowing the actual speed aside, the stability part is the more concerning part. I do not want to compromise looks for stability or safety.

Doing the same calcs like u did, I realize that the 18" and 19" setup that KIA provided have the same overall diameter which is around 660mm. 18" uses higher profile tyres while 19" uses lower profile.

With this knowledge, I'll know what to look out for when I'm upsizing from 18 to 19". First, try to keep to original diameter which is around 660mm. Second, which is more important, keep the front and rear diameters very close.