Wheels and Tires Discussion about wheels and tires for the S2000.
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Summer / all season tire recommendation for playfulness

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Old Jan 11, 2026 | 02:03 PM
  #11  
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Originally Posted by Bullwings
Get a square wheel and tire setup. It will fix everything that you've asked for in multiple different threads in different sub-forums for a more playful car with better turn-in.

You'll also get the added benefit of being able to rotate tires F/R for even wear and being able to replace a set of tires at the same time.
Makes sense, but I’ve read in multiple places that you lose steering feel, right? But it’ll be heavier?

Will require new wheels too
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Old Jan 12, 2026 | 05:26 AM
  #12  
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Look for road tests not arbitrary ratings. In this case we're looking for "feel" not pure performance. Tires tested by Tire Rack usually describe "feel" which is independent from the ratings.

UTQG ratings are done by the tire manufacturers, not some government testing facility, so comparisons across brands aren't totally valid. There is no rating for "grip" other than the "traction" rating. Extreme summer performance tires, that we know are the best performing such as the just released Bridgestone RE-71RZ (yes, my RE-71RS tires just became obsolete), only have a traction rating of A (2d tier) while 4 our of 5 "Ultra" (3d tier) tires have the top AA traction rating. Read the tests as subtle differences like "feel" are usually included.

A reminder: The three components of UTQG:
  • Treadwear: A number indicating expected tread life; a tire with a 400 rating is expected to last twice as long as one with a 200 rating (relative to a control tire rated 100).
  • Traction: Letter grades (AA, A, B, C) for stopping ability on wet pavement; AA is the best.
  • Temperature: Letter grades (A, B, C) for resistance to heat buildup at high speeds; A is the best.
(Data is from Tire Rack. None of us have the ability to test more the the tires currently on our cars.)

-- Chuck
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Old Jan 12, 2026 | 10:31 AM
  #13  
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Originally Posted by jadoos2k
Makes sense, but I’ve read in multiple places that you lose steering feel, right? But it’ll be heavier?

Will require new wheels too
You arent giving up feel to a noticeable amount going square. And even if it changed a small amount the benefits far outweigh it. There is a reason almost every s2k you see on a track or on an autox course has a square setup. In general you want to maximize grip at all 4 corners and tune the cars behavior through suspension setup.

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Old Jan 12, 2026 | 10:33 AM
  #14  
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This may be the first place I have heard sticky and Indy 500's in the same sentence I guess compared to all seasons but are not even in the ballpark of what we call the "super 200s".

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Old Jan 12, 2026 | 11:31 AM
  #15  
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Originally Posted by engifineer
This may be the first place I have heard sticky and Indy 500's in the same sentence I guess compared to all seasons but are not even in the ballpark of what we call the "super 200s".
Hence why the all season part is important. We can't all be as cool as you running a square setup.
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Old Jan 12, 2026 | 12:01 PM
  #16  
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Originally Posted by sam_spider
Hence why the all season part is important. We can't all be as cool as you running a square setup.

?? What did that comment have to running a square setup? Super 200 means RE71RS, A052, etc ... the super sticky 200's. Has zero to do with staggered or square lol.

Nothing making me "cool" about running a square setup, he asked about if a square setup would change the steering feel so I answered that question in the other reply.

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Old Jan 12, 2026 | 01:13 PM
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Originally Posted by engifineer
?? What did that comment have to running a square setup? Super 200 means RE71RS, A052, etc ... the super sticky 200's. Has zero to do with staggered or square lol.

Nothing making me "cool" about running a square setup, he asked about if a square setup would change the steering feel so I answered that question in the other reply.
Well aware of a 200 tw rating, I used to run Star Specs and Direzzas when I tracked my car. The Pirelli Corsas on my Giulia have a 60tw rating. There are a lot of people running the Indy's that make claim that they're sticky, that's all. I have PS4's on my S2000 and my 911, I don't find them all that good from a sticky point of view.

The square setup comment is in relation to everyone coming in and telling everyone to go square. It gets old and looks stupid imo unless on a dedicated track car.

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Old Jan 12, 2026 | 01:33 PM
  #18  
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people generally say that when people want the car to handle better, cause square makes the car drive extremely well and you can actually rotate your tires so makes as much sense on the street as on track. And how it looks is just your opinion. I find nothing any more visually appearing about staggered vs non staggered. And given the performance and functionality improvement (being able to rotate your tires like a normal car) of square setups staggered "looks" silly to me Being annoyed enough to be snarky about someone's recommendation to run a square vs staggered setup is kind of an odd thing though... just saying. I figure you must have some other issue with me that triggered that response since it makes literally no sense to have responded that way just from the recommendation given. Just trying to provide some input here.

And if I offended you about the Indy 500 thing.. it was a joke man. Sorry, in any other discussion group about the s2000 and handling, the Firehawks became kind of a joke like the R888s did because there were a number of people trying to push that they were the best tire on the track for a while, so it kind of became a running joke.
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Old Jan 12, 2026 | 01:46 PM
  #19  
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Originally Posted by sam_spider
The square setup comment is in relation to everyone coming in and telling everyone to go square. It gets old and looks stupid imo unless on a dedicated track car.
It's mainly in relation to all of the separate threads and requests from OP for more playfulness and tail happiness.
Inherently the AP2 is designed to understeer with the staggered wheel/tire setup, revised rear suspension subframe, and revised stiffer front sway and softer rear sway from the factory.

I feel like going to a lower grip compound without changing anything else will just highlight the understeering tendencies at a lower threshold with the front end losing grip with very little effort.

https://www.s2ki.com/forums/newreply...ply&p=25134029

Originally Posted by jadoos2k
I recently purchased a 2004 AP2 with bone stock suspension (50k miles) and stock wheels (215F/245R) on PS4S's. I took it to autocross and I was able to get the rear out quite a bit after some practice, and going again in a couple weeks, but generally I've found that the car loves to understeer stock. On spirited drives as well, I've learned to get the car balanced and not understeer if I don't want it to, but I haven't quite figured out how to make the rear loose grip, unless I enter a turn too hot. By the end of 25+ laps in autocross the rear was very willing to kick out, but my guess was that was due to tires getting greasy / shredded or increased tire pressure.

What's the easiest way to introduce just a bit more rear-end liveliness / cut out some understeer on the car?
Bump up tire pressure? Alignment? ap1 rear sway bar? thicker front tires? Would switching to a 225/255 help, or would it keep the same balance?

Or is it just driver mod? Feel free to roast me if that's the recommendation
https://www.s2ki.com/forums/s2000-mo...hlins-1223216/

Originally Posted by jadoos2k
I have an ‘04 AP2, and my trigger fingers just ordered some off the shelf ohlins.

I used to own an NC Miata, and I remember i had pretty bad rear bottoming out issues on my 7k/4k Ohlins, so I bumped up the rear springs to 5k, and that definitely helped.

I prefer my car a bit more tailhappy, but I’m realizing the OTS ohlins have a slightly stiffer front ratio than OEM ‘04 springs.

Should I put on 10k/10k springs instead of the OTS 10k/8k? anyone who runs it have any insight on how it feels? Will I run into rear bottoming out issues on the 8k as well?

Also adding that I absolutely adore the stock suspension, and am wondering if the Ohlins are even going to be worth the upgrade. I know a lot of people love em here, so maybe I’m wrong?

thanks!
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Old Jan 13, 2026 | 08:47 AM
  #20  
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Originally Posted by engifineer
people generally say that when people want the car to handle better, cause square makes the car drive extremely well and you can actually rotate your tires so makes as much sense on the street as on track. And how it looks is just your opinion. I find nothing any more visually appearing about staggered vs non staggered. And given the performance and functionality improvement (being able to rotate your tires like a normal car) of square setups staggered "looks" silly to me Being annoyed enough to be snarky about someone's recommendation to run a square vs staggered setup is kind of an odd thing though... just saying. I figure you must have some other issue with me that triggered that response since it makes literally no sense to have responded that way just from the recommendation given. Just trying to provide some input here.

And if I offended you about the Indy 500 thing.. it was a joke man. Sorry, in any other discussion group about the s2000 and handling, the Firehawks became kind of a joke like the R888s did because there were a number of people trying to push that they were the best tire on the track for a while, so it kind of became a running joke.
Not targeted directly at you, you and bullwings both going on about square set up as the end all be all. I'm allowed to be tired of reading something and not agreeing with it, just as you're allowed to not agree with me. Not a big deal at all.

I'm not in any other discussion groups, so bringing an inside joke from there to here doesn't translate to me. If this thread was in R&C I wouldn't be posting, but this is just wheel & tire, and as I've run quite a few tires on my car and other cars I comment when appropriate, or at least when I thought it was.
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