I am doing some initial due diligence regarding the replacement of my OEM run flats. I am looking for an all-weather tire that will give me a quieter and smoother ride than the run flats (not a high bar, I know). I’m wanting more performance, but it is worth noting that I am not overly demanding of the tires (I don’t track the car).

I thought I’d just get a set of Michelin Pilot Sports but I’ve heard less than flattering things about their longevity which is important to me. I heard good things about the Continentals but they apparently don’t offer a direct replacement for my 21” front tires. So what tire is available to replace my 21” run flats that offers both decent performance and decent longevity (i.e., a tire that does a good job of balancing expected mileage and performance)?
How long do the Yokohama’s typically last?

 

The consensus on this forum has been pretty positive for the PSAS4. There was one negative review from the owner of a different Lexus model. My personal experience with Continental has been negative; I will never buy a Continental Tire again. I have Michelin PS4S, a performance tire, on my LC and have been very happy with the handling and performance. IMO, the track is not the only reason to have a performance tire Also, I am far more interested in the tire's performance than its wear.

Lou

 

How many miles are you expecting (assuming that you have not already gone through a set) from your PS4S?

 

^^^^I went through a set, but only because I had a catastrophic flat that completely destroyed the tire and a wheel. I ended up replacing all four tires and wheels. Assuming no further issues, I expect to get 15K from my current PS4S. But remember my tires are PS4S, not PSAS4. The all season tires should wear considerably less and last longer.

Lou

 

For many years I've relied on TireRack.com for reviews, research and purchases. I would suggest you take a look at their review section.
Glenn

 

My 2018 LC came to me with Yokohama Advans — 20-inchers—about three years ago. Since then I’ve added 37,000 miles, and much tread life remains. Handling and traction seem fine, although except for some 170-mph blasts with the Loring Timing Association, I don’t overly abuse the car, or tires. The Advans are comfy enough, but I might look for something quieter. All in all, the Advans have been just fine — and they’re not expensive.

 

Conversely, I wish I could get a Continental, (ExtremeContact DWS 06 Plus) ultra high performance All-Season, in the right size. Has been an exceptional tire for me, for many years.

 

I know you're running 20" but if anyone is interested, I have (2) 21" Advan Sports AS Plus for sale.
www.eBay.com/itm/395976321406

 

Stepping up to a 295/35/21 All-Season rear, because of better availability, is not a fitment issue for the OEM wheels. And might I suggest the mobile service...beats sitting in a tire shop, any day of the week! 👌🏾

 

I will likely go back to a 275 series rear tire once my 295 wears out. The 295 being 20mm wider than the stock 275 plus a 15mm spacer gives you a tire that is roughly 1.37" wider than the OEM setup.
Not sure if this setup interferes with the aero stability enough that you can feel it, but I often ponder this question. Especially with the known tight tolerances and purpose-built characteristics of the LC... 1.37" might be the equivalent of a *country mile.*
In the illustration I have included, the LC was designed to flow air through the side vents and OVER the rear tire for more stability/controlled aerodynamics. Not for brake cooling like some might think. (I saw one of the assembly line engineers explaining this in a vid I saw about the LC, some years ago). Just food for thought...

 

Could well harm your Cd, as the air going through the vent would hit the shoulder of the tire and billow outwards. Might reduce directional stability a little, but doubt you'd notice, as it would be offset by the increased mechanical grip, in a cross-wind, etc. The spacer together with the wider tire would also change slightly your chassis geometry, of course, too. I switched one of my other cars over from PS4S to CrossClimate2, for the winter, and that REALLY impacted directional stability...!

 

Interstate cruising speeds, it's likely not too noticeable. 150 mph though, might be a different story. It's all very interesting stuff...to me, at least.

 

Two excellent all season tires:

Michelin Pilot Sport All Season
Continental DWS 06 Plus

There is no way that anyone on the street would 'need' the HP Summer Pilot Sports since the All Seaasons deliver more performance than anyone can wring out legally on the street.

If on the track, get track tires versus a HP Summer that's a street tire.

The LC500 is NOT a super high performance handling car which requires HP Summers to extract that non-existent 'performance' - it's a GT car after all.

Executive Summary - get all seasons and you'll never notice/miss the difference. Plus, you can drive on them when it's below 45 degrees unlike HP Summers.

 

Agree w/Pro Michelin or the Conti's. Went with the Mich few yrs back. Liked the way they looked.

 

No doubt that people will have varying opinions about tires. Your perspective is well stated and very logical. The LC 500 is built on the large car GLA platform. It is a massively built car that is heavy (4300-4500lbs) solid and has a relatively long wheel base (113 inches). These parameters suggest to me that razor sharp handling on technical roads wasn’t the top priority for the LC 500. More so very competent public road handling combined with excellent solidity and ride comfort.