Pirelli

Winter Sottozero 3

Name: Pirelli Winter Sottozero 3 275/35R21 XL
Brand: Pirelli
SKU: 4248700
Price: 392.65 USD
Availability: InStock

275/35R21 XL

Winter 3PMSF M+S

$392.65/tire $523.53

Set of 4: $1570.60

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Specifications

Size	275/35R21 XL Winter Sottozero 3 (T0) NCS ELT
Width	275 mm
Aspect ratio	35
Rim diameter	R21
Load index	103
Speed rating	W

Season	Winter
Tread depth	10/32"
Weight	29.51 lbs
Max pressure	50 psi
Severe snow (3PMSF)	Yes
Run-flat	No

About the Pirelli Winter Sottozero 3

Winter High Performance Passenger Car tire Dedicated to High-End Premium Vehicles.

Features

* 3D sipe technology* Wider grooves* Higher sipes density* Directional double arrows pattern design* Functionalized compound* Pirelli Noise Cancelling System™ (NCS) - select items only* Pirelli Seal Inside™ (S-I) puncture proof technology - select items only* M+S Rated* Carries the Three-Peak Mountain Snowflake (3PMSF) symbol

Benefits

* Improved handling on dry road condition, reducing the braking distance* Excellent wet handling and braking performance* Better grip on snow road condition* Higher traction on snow condition* High grip in all winter weather conditions* Significantly reduces noise inside the vehicle - select items only* Allows you to drive on without losing air pressure even after the tire has been punctured by an external object - select items only* Meets the required performance criteria for Use in Severe Snow Conditions

Understanding the 275/35R21 XL size

In the size code 275/35R21, 275 is the section width in millimetres (about 10.8"). 35 is the aspect ratio — the sidewall height is 35% of the width, or roughly 96.3 mm. R21 means radial construction on a 21-inch wheel, giving an approximate overall diameter of 28.6".

The load index 103 means each tire supports up to 1,929 lbs — about 7,716 lbs across a full set of four. The speed symbol W certifies the tire to 168 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.

What the Pirelli Winter Sottozero 3 is built for

The Pirelli Winter Sottozero 3 is a winter tire, using a cold-weather compound that stays pliable below 45°F (7°C) where all-season rubber hardens and loses grip. It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it passed a standardised severe-snow traction test. Fitment category: Passenger Car, CAR, Performance, HP.

Price and value

At $392.65 per tire, a full set of four costs $1570.60. That sits close to the average for the 72 tires we stock in this size.

Frequently asked questions

What does the tire size 275/35R21 mean?

275 is the section width in millimetres, 35 is the aspect ratio (sidewall height as a percentage of width, about 96.3 mm), and R21 indicates radial construction for a 21-inch wheel. Overall diameter is approximately 28.6 inches.

What are the load and speed ratings of the Pirelli Winter Sottozero 3 275/35R21 XL?

Its load index of 103 allows up to 1,929 lbs per tire. Its speed rating of W is certified to 168 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.

How much does a set of 4 Pirelli Winter Sottozero 3 275/35R21 XL tires cost?

A single tire is $392.65 and a set of four is $1570.60.

Is the Pirelli Winter Sottozero 3 rated for snow?

Yes. It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it met a standardised severe snow traction test and is built as a dedicated winter tire.

Does the Winter Sottozero 3 come in other sizes?

Yes — we stock 74 additional Winter Sottozero 3 sizes besides 275/35R21 XL. Fit only a size approved for your vehicle.