Michelin Pilot Sport 4S Autocross 325/30R21 108Y XL Summer Tire
Michelin Pilot Sport 4S Autocross 295/30ZR21 102Y XL Tire Michelin Pilot Sport 4S Autocross 295/30ZR21 102Y XL Tire $497.99
Michelin Pilot Sport 4S 285/25ZR22 95Y XL Summer Tire Michelin Pilot Sport 4S 285/25ZR22 95Y XL Summer Tire $443.99
Michelin

Michelin Pilot Sport 4S Autocross 325/30R21 108Y XL Summer Tire

325/30R21108YSummerPassenger Car

$560.99each

How many?

4 tires: $2,243.96

Up to 4 tires per order.

- OR -
  • What’s included1 tire. The wheel is not included. Mounting and installation are not included.
  • Free shippingOn every order. We ship to the contiguous US only (not Alaska or Hawaii).
  • ReturnsYou have 30 days from the date you receive your order to request a return. Items must be unused and in their original condition. Email us first. Details

Same size, other tires

Tires in 325/30R21, this one included. A few of them:

TirePriceLink
AcceleraIota ST68
—View Accelera Iota ST68 →
AplusPro Racing
—View Aplus Pro Racing →
ArroyoGrand Sport
—View Arroyo Grand Sport →
DelinteDesert Storm II DS8
—View Delinte Desert Storm II DS8 →
Dunlop108Y Sport Maxx Race2 N1
—View Dunlop 108Y Sport Maxx Race2 N1 →
DunlopSP Sport Maxx GT ROF
—View Dunlop SP Sport Maxx GT ROF →
GladiatorX Comp H/P
—View Gladiator X Comp H/P →
See all tires in 325/30R21 →

Specifications

Tire size325/30ZR21/XL (108Y)
Tire load index108
Tire speed rating(Y)
Tire load rangeExtra Load
Tire seasonSummer
Tire terrainHighway Terrain
Uniform tire quality grade (utqg)300 AA A
Tire treadwear rating300
Tire sidewall styleBlack Sidewall
Tread depth9.5/32
Overall diameter28.7 in
ManufacturerMichelin North America Inc
Tire width13.3 in
Vehicle fitment typeUniversal
Is run flatN
Vehicle typeCar
Construction typeRadial
Electric vehicle tireY
Automotive parts divisionPerformance
Wheel diameter21 in
Flotation tireN
Maximum vehicle rim width12 in
FeaturesHigh-Speed
Items includedTire (wheel not included)
Minimum vehicle rim width11 in
Total count1
Vehicle class designatorP
Tire locationFront and Rear Tires
Tire diameter21 in
Tire typePassenger Car Tires
ModelPilot Sport 4S 14521
Maximum inflation pressure50 psi
Tire aspect ratio30

Specifications are as published by the manufacturer. Please confirm the size against the placard on your vehicle before ordering.

Description

The Michelin Pilot Sport 4S Autocross is an ultra-high-performance summer tire for sport and performance cars, drawing on the Pilot Sport 4S design. Dynamic Response Technology supports sharp steering and cornering, and a hybrid compound improves dry grip.

Variable Contact Patch technology spreads pressure across the footprint during aggressive driving, helping reduce hot spots and extend tire life.

The 325/30R21 size carries the 108Y load and speed index with extra load (XL) construction. It offers 9.5/32-inch tread depth, a 50 psi maximum inflation pressure, a UTQG rating of 300AAA and an overall diameter of about 28.7 inches.