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Michelin Pilot Sport All Season 4 - 255/40R21/XL 102Y Tire

|379 ratings
Item # 980285309
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Highlights

  • All season
  • Sports cars, performance coupes, sedans
  • 45,000 Mile Manufacturer's Limited Warranty
  • Outstanding grip, dramatically improved wet and dry braking
  • For passionate drivers seeking the ultimate performance
  • Black sidewall
  • Find better visibility this fall with fresh wipers. Click here to shop now.
michelin pilot sport all season 4 - 255/40r21/xl 102y tire centered three-quarter view mounted on five-spoke alloy wheel, black sidewall with visible Michelin logo and 'Pilot Sport All Season 4' shoulder marking, tread with circumferential grooves and lateral siping visible on studio white background; suitable for sports cars and performance sedans and often chosen for year-round performance driving.
Michelin Pilot Sport All Season 4 - 255/40R21/XL 102Y Tire
Hero image 0 of Michelin Pilot Sport All Season 4 - 255/40R21/XL 102Y Tire, 0 of 5

About this item

Product details

Before purchasing tires, make sure to use our Tire Finder to select the right fit for your vehicle.

Experience Extreme Control and Reactivity
The Pilot Sport All-Season 4 tire allows the driver to experience extreme control and reactivity with this exceptional tire. The Pilot Sport All-Season 4 is also Supercar Certified. Making it the first all-season tire chosen by Chevrolet® for the Corvette.

Exceptional Wet and Dry Grip
The Pilot Sport A/S 4 comes with Dynamic Response Technology that ensures optimum transmission of steering instructions to the road for improved handling and reactivity. Dry, wet or snow covered, the Pilot Sport All-Season 4 delivers superior performance.

Experience Performance Made To Last
The Michelin Pilot Sport All Season 4 is the longest-lasting Ultra-High Performance all-season tire among leading competitors.

Aimed At Passionate Drivers Looking For The Ultimate In Dry and Wet Performance
The Pilot Sport All-Season 4 tire improves the breakthrough dry and wet performance of its predecessor so drivers can dominate summer. Plus dramatically improved performance in cold weather and light snow to shrug off winter, so drivers can ultimately control the moment.

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Specifications

Product Details
Tire Size:255/40R21
Service Description:102Y
Sidewall:Black Sidewall
Material # or MSPN:25642
Rim Width (min. to max.):8.5 - 10
Section Width:10.2
Overall Diameter:29
Tread Depth (32nds):10
RPM:717
Max Load (lbs.):1874 lbs @ 50 psi
UTQG Rating
Treadwear:540
Traction:AA
Temperature:A

Warnings and disclaimers

Disclaimer

Wheel Not Included

With the purchase of 4 tires, the Tire Installation Package ($20 per tire) includes:

  • Free Installation for Plus, when you buy 4 tires
  • Tire Mounting
  • Free Lifetime Rotation & Balance
  • Free Lifetime Flat Repair
  • 5 years Road Hazard Protection (Excluding New York State)
  • 4 years of 24-hour Roadside Assistance

***Road hazard protection not available in New York for new tire purchase after 2/28/2472

Member ratings & reviews

4.3 out of 5 stars
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379 ratings378 reviews
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  1. 5 stars74% (281)
  2. 4 stars8% (32)
  3. 3 stars4% (17)
  4. 2 stars4% (14)
  5. 1 star9% (35)
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Showing 1-3 of 378 reviews

Nov 12, 2021
Reviewer name: ET GARAGE
5 out of 5 stars
5 out of 5 stars review

Great Handling Tire

I bought the Tires about 5 months ago and out of all the tires I have had on my 90 Corvette these are the best yet, Handling is great, Ride is very Good and they seem to be wearing very well.

Review from michelinman.com
Helpful?47UJ6754W6XG13794123213
Aug 30, 2026
Reviewer name: Manny A
5 out of 5 stars
5 out of 5 stars review

The grip !!!!!

Had summer Nittos On my mustang in Houston Texas ,,, moving to NC so I needed some good all Season tires …. As Soon as I drove off with my new Michelins I loved them I could instantly tell the grip and handling was light years above my Nittos … love these tires !!! Thanks Michelin !

Review from michelinman.com
Helpful?47UJ6754W6XG13794123213
Aug 20, 2026
Reviewer name: Mustang K
5 out of 5 stars
5 out of 5 stars review

Unmistakeable Tread pattern

I drive a Mustang Ecoboost, the options most appealing were these vs Bridgestone Potenza. I live in NEPA so I need an AS with good tread, even though I rarely travel in bad weather. So I picked these for reputation and tread. I have hot water in my driveway hose... after washing my son's car for a trip... I asked him to pull my Mustang back into the driveway.. the next day, I backed out and CLUMPS of dried mud from the clearing across the street. It took a full 20 min to wash all the mud and gravel off the driveway. I have NO doubts whatsoever now about my choice!

Review from michelinman.com
Helpful?47UJ6754W6XG13794123213