Michelin Pilot Sport 4 S 345/25R21 104Y

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The size 345/25R21 means a tire 345 mm wide, with a sidewall 25% as tall as it is wide (about 86 mm), built for 21-inch wheels. Load index 104 means each tire can carry up to 900 kg (1,984 lb), or 3,600 kg for a set of four. Speed rating Y means it is certified for sustained speeds up to 300 km/h (186 mph). It is an XL (extra load) tire, reinforced to carry more weight at higher inflation pressure. It is a run-flat tire and can be driven a limited distance after losing pressure, on vehicles with tire pressure monitoring.

$637.00 per tire

Set of 4: $2,548.00 before tax

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SKU MI 09852 · GTIN 086699098528

Specifications

Size	345/25R21
Load index	104 — 900 kg (1,984 lb) per tire
Speed rating	Y — 300 km/h (186 mph)
Season	Summer
3PMS (severe snow)	No
XL	Yes
Run-flat	Yes
Studdable	No
UTQG	300 AA A
Tread depth (new)	8/32″ (6.4 mm)
Overall diameter	706 mm (27.8″)
Revolutions per km	451
Tire type	Passenger

Size

345/25R21

Load index

104 — 900 kg (1,984 lb) per tire

Speed rating

Y — 300 km/h (186 mph)

Season

Summer

3PMS (severe snow)

Yes

Run-flat

Yes

Studdable

UTQG

300 AA A

Tread depth (new)

8/32″ (6.4 mm)

Overall diameter

706 mm (27.8″)

Revolutions per km

451

Tire type

Passenger

About the Michelin Pilot Sport 4 S

The Michelin Pilot Sport 4 S is a max-performance summer tire for sports cars and powerful sedans, built for maximum dry and wet grip and precise steering. It is a warm-weather tire: fit it from spring to fall and switch to winter tires when temperatures drop below 7 °C.

See every size of the Michelin Pilot Sport 4 S

Questions about the Michelin Pilot Sport 4 S 345/25R21

What does 104Y mean on the Michelin Pilot Sport 4 S 345/25R21?

The load index 104 means each tire carries up to 900 kg, and speed rating Y means it is rated for up to 300 km/h. Choose a load index and speed rating at least equal to your vehicle’s placard.

Can I use the Michelin Pilot Sport 4 S 345/25R21 in winter?

No. Summer tires lose grip below about 7 °C and must not be used on snow or ice. Switch to winter tires for the cold season.

How fast is delivery and is it free?

Delivery is free to any address in Ontario or Quebec, usually within 1 to 3 business days. You can also pick up your order at 321 Rexdale Blvd, Etobicoke, Monday to Friday from 9 a.m. to 5 p.m.

Michelin Pilot Sport 4 S 345/25R21 104Y

Specifications

About the Michelin Pilot Sport 4 S

Other Michelin Pilot Sport 4 S sizes

Questions about the Michelin Pilot Sport 4 S 345/25R21