Tires

Reply Subscribe

Thread Tools

Search this Thread

Apr 22, 2026 | 09:24 AM

#631

fodalo

Instructor

Joined: Jan 2021

Posts: 1,242

Likes: 617

From: NH

AS4'S way to go as Rocky says. Been on the vehicle now for 4 years, no issues.

Apr 22, 2026 | 12:59 PM

#632

flowrider

Lexus Champion

iTrader: (9)

Joined: Nov 2008

Posts: 11,252

Likes: 2,384

From: Arizona

Quote:

Originally Posted by NoriRaine

The H(igh) L(oad)version too, so the same as FR680, these are quite rare, never seen HL before, almost no tire shops offer these HLversion.
I will get the kerb damage on 3 rims repaired and these fitted, hope I will like the way they drive..

High-load tires are designed for heavy vehicles, such as EVs.

Lou

Apr 22, 2026 | 02:01 PM

#633

NoriRaine

Rookie

Joined: Feb 2026

Posts: 36

Likes: 24

Quote:

Originally Posted by flowrider

High-load tires are designed for heavy vehicles, such as EVs.

Lou

Perfect.
So they can withstand the blistering acceleration of the LC

and will be nicely stiff in the steering response department...
I hope..

Apr 22, 2026 | 03:37 PM

#634

FR680

Driver

Joined: May 2023

Posts: 66

Likes: 71

From: BC

Quote:

Originally Posted by flowrider

High-load tires are designed for heavy vehicles, such as EVs.

Lou

The Michelin Pilot Sport 4S HL255/40ZR21 (105Y) MO1 and HL285/35ZR21 (108Y) MO1 tires are an OEM option for the 2025 and newer Mercedes AMG S63 E Performance sedan. This is indeed a very heavy (5,831 lbs) and powerful (791 hp, 1,055 lb-ft) sport sedan.

As per Michelin, the heavy load (HL) sizing format is an updated standard for the E-Metric extra-load (XL) sizing format. These specific Pilot Sport 4S tires have an extremely high speed-index rating, the highest ultra-high performance/UHP rating.

Using these tires on a lighter and less powerful car (LC500) should give good performance and longevity, as the tire will not be working as hard as intended.

Apr 22, 2026 | 04:13 PM

#635

ratchettt

Advanced

Joined: Apr 2025

Posts: 573

Likes: 343

From: TN

Quote:

Originally Posted by FR680

I'm just assuming the HL tire is a lot heaver. Will this degrade performance on the LC?

Apr 22, 2026 | 09:47 PM

#636

FR680

Driver

Joined: May 2023

Posts: 66

Likes: 71

From: BC

Quote:

Originally Posted by ratchettt

I'm just assuming the HL tire is a lot heaver. Will this degrade performance on the LC?

Actually, these specific Michelin PS4S HL tires weigh less than the OEM Michelin tires. Which is another benefit.

The 2024 and newer LC500 OEM Michelin Pilot Sport S5 245/40R21 (96Y) LEX and 275/35R21 (99Y) LEX tires weigh 27.1 lbs and 28.8 lbs respectively. The larger PS4S HL tires weigh 25.7 lbs and 28.1 lbs respectively.