I'm new to the car build community and was looking for advise on upgrading my stock 2016 IS200t setup. I currency have the 17" factory tires and rims on my car. I am looking to upgrade to a 18" or possibly a 19" setup. Any suggestions on what tires and rims to go with? I'm trying to stay at around the >$900 mark for the rims and looking for the best tires I can get on a budget too. The current plan is to go with gloss black rims, so any specific wheels would be appreciated. In addition to this, any advise on lowering springs or suspension mods that work with this setup would be greatly appreciated.

My concerns with upgrading the tires include any rubbing that may occur and the tachometer speed reading not being accurate if I upgrade the size.

If anyone is selling a setup, I would be open to that too!

 

If you haven't had the opportunity yet, I would suggest browsing this thread: https://www.clublexus.com/forums/is-...exclusive.html
You'll get to see a vast variety of rims from 18 to 20 inch...and all different colors and spoke designs.
You will also see them fitted on vehicles lowered is a variety of manners and heights.

So far i gather you are looking for:

• Black rims
• 18 to 19 inch
• Around $900
• Appropriate sized tires so speedo reads correct, or pretty close
• Lowering on springs

You may want to consider if you want a square (all rims the same) or staggered (rear rims wider than front) setup.
Also how low do you want to lower it? Close the wheel gap...just a little drop...or slam it to the floor.

 

Everything on that list is correct. I would be fine with going on either the square or staggered path, depending on which route would be cheaper currently and in the long run. As for the lowering, I'm looking at slightly lowering it, mostly like closing the wheel gap. I've been considering the RSR Down Springs and the drop that it would give me. As it currently sits, I would get the new tires and rims first and lower it some time possibly in the next year.

 

With a square setup, this gives you the ability to rotate wheels, which will maximize tire life.
With a staggered setup you cannot rotate the wheels...so that is one consideration.
If the roads where you drive are crappy, I would suggest an 18 inch setup which allows you to maximize sidewall height.
If the roads are pretty good where you drive, then you can step up to 19's with a smaller sidewall.
Tire costs also increase as tire size increases, so that is also something to consider.

I would suggest looking for a couple rims that you like and we can provide feedback about fitment and tire sizes.
You should have enough criteria now to narrow your search for what wheels you want.

 

Thanks for all the advise. I've decided to go with a 18 inch square setup. I will look into different rims and post them here as you have suggested. Do you have any suggestions of what brands to look into?

 

As pricing directly relates to brand, being north of the border where everything is more expensive, I don't know off hand what brands would be within your budget.
However, I can make a suggestion on sizing that should help narrow it down for you.
If you're going with an 18 inch square setup, i would recommend:

• 18x8 +25 to +30 offset
• 18x8.5 +30 to +35 offset
• 18x9 +35 offset
• 18x9.5 +38 offset

 

After looking at many rims, I have narrowed it down to 2. Both of these rims seem very similar except that one is matte black vs glossy. I am leaning more towards the glossy black, as I do have the pearl white color car and I think that it would contract well. I have listed the two rims below. Could you give me any details regarding the issues discussed earlier in this thread (speed readings, rubbing, etc). Also, suggestions for tires. According to the website, it shows a guarenteed fit. Would this be true with stock height? Thanks again!

Niche M240 - https://www.carid.com/niche-wheels/m...966858967.html
Niche M147 - https://www.carid.com/niche-wheels/m...-15769943.html

For size references, these are both: 18" x 8", +40 Offset, 5x114.3 Bolt Pattern, 72.56mm Hub

 

Both rims will fit just fine at stock height and lowered.
You can use a 225/40/18 tire.

Depending on the look you were trying to achieve, these won't be a flush or near flush fitment to the fenders.
In my previous posts I had suggested 18x8 +25 to +30, which would bring the rim out more towards the fender to give it a more flush look.
The rims are fine the way they are, just trying to prepare you for what the fitment would resemble. Not everyone is into the flush look, it just seems most people prefer it.

 

I apologize if this is a straight forward answer but what exactly would the "flush or near flush fitment to the fenders" look like? I'm imagining sort of a a concave look for the rims, is this correct? I looked into the sizes you recommended, but the rims I liked did not have these offsets. I did go back and look and I saw that the Niche M240 has a +40 offset for the front and a +25 offset for the rear option. Would this be a better option? I've uploaded a picture below of the M147 rims, could I expect a similar look with the M240 rims, with the +40 or +40 and +25 offset? Sorry for all the questions, but I'm just trying to learn as I go.

 

i would like to run a square set up. Will 19x9 +38 or 19x9.5 +35 fit perfectly without rubbing ?

 

When we refer to 'flushness', it's representing the inward or outward position of the rim to the fender.
Imagine if you were squatting at the left front corner of the front bumper looking down the side of your IS towards the rear bumper.
You would see the front fender, the front and rear doors, and the rear fender (the rear fender is really called the quarter panel).
If the rims were flush, you should see them at the edge of the fender opening...if the rims 'poked', then they would be outside the fender...and if they were not flush, they would be sunken into the wheel well and you wouldn't see them at all.
The pic below is my drivers front wheel, as viewed from squatting beside the drivers rear door and looking towards the front bumper. I would consider this a 'near flush' fitment as you can see the bottom of the rim, the middle of the rim, but not the top of the rim.
The rim in this pic is a 20x8.5 +35 with a 6mm spacer (thus making the offset approx. +29).
As a reference, an 18x8 +40 rim would be pushed into the wheel well (towards the engine in the case of the pic below) approx. 18mm, or almost 3/4 inch...so you wouldn't see the middle of the rim, and likely very little of the bottom, if any at all.
As wheels are setup to always have some negative camber (the top of the wheel leaning inwards as opposed to the bottom of the wheel), the wheel will never be straight up and down.
Some would consider the wheel 'flush' if you can see the bottom, middle, and top of the rim while looking down the side of the vehicle.


You could use a 18x8 +25 all around for a concave look at all four corners and maintain a square setup.
The concave appearance of the rim is driven by the offset...the lower the offset number, the more concave the rim is.
So an 18x8 +40 will have less of a concave appearance than an 18x8 +25. In fact the +40 will pretty have a flat face to the rim.

In the pic you provided of the black 2IS, the rear rims have more concave, but it looks like the rear rims may be wider than 8 inches, also I can't tell how wide the front are.
Also they look like 19's, and not 18's...judging by the height of the sidewall on the tire.

 

19x9 +38 would be ok all around...front brake caliper clearance may depend on the rim design.
19x9.5 +35 would be ok on the front, but you will likely have rubbing in the rear with an appropriate sized tire on anything but stock height.

If you swapped the offsets around, 19x9 +35 and 19x9.5 +38, you would be ok with either setup to not rub.

 

hi

would you recommend 18x10 +25?
What should I anticipate in running this set up?
and I’m curious if this would give the flush look.
I also would like to ask what tire size would you recommend for this set up?
I appreciate you sharing your knowledge and input.