On this page you’ll find the full specifications for this 275/35R21 Pirelli SottoZero 3 Winter tire — including load/speed ratings, certifications (3PMS / studdable / run-flat / XL), UTQG (when provided by the manufacturer), and shipping details for Ontario and Quebec.
Quick Specs
Size: 275/35R21
Brand / Model: Pirelli SottoZero 3
Season: Winter
Certifications: 3PMSF severe snow service, XL (Extra Load)
Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
275/35R21 Pirelli Winter SottoZero 3 Winter
Category: Winter – Performance
The Pirelli Winter Sottozero 3 is a winter top performance tire designed for use on high end premium vehicles. They provide maximum safety and control in all winter driving conditions including snow and ice. Winter Sottozero 3 tires offer you the ability to handle any winter driving environment with confidence.
3PMSF severe snow service rating indicated. XL (Extra Load) rating indicated.
How this tire is positioned
275/35R21 Pirelli SottoZero 3 is positioned as a winter / winter – performance tire built around a 275 mm section width and 21-inch wheel fitment.
In practical terms, this size combines a 35-series sidewall of about 96 mm with a 21-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
Feature-wise, this listing indicates 3PMS certification for severe-snow service, an XL extra-load rating.
About the 275/35R21 tire size
The 275/35R21 size breaks down as follows:
275 — tread width in millimetres
35 — sidewall height as a percentage of tread width (approx. 96 mm)
R21 — fits a 21-inch rim
The 275/35R21 size is commonly found on performance vehicles and heavy-duty trucks. If you’re matching an existing set, confirm the full size marking on your sidewall before ordering.
Key features — Pirelli SottoZero 3 in 275/35R21
3PMSF severe snow service symbol indicated.
XL (Extra Load) rating indicated.
Size: 275/35R21 (fits an 21-inch wheel).
Season category: Winter.
Ontario & Quebec — winter tire information
In Quebec, winter tires are mandatory on all passenger vehicles from December 1 to March 15 under the Highway Safety Code. In Ontario, winter tires are strongly recommended during cold-weather months and many insurance providers offer premium discounts for equipped vehicles. The 275/35R21 Pirelli SottoZero 3 is a Winter tire bearing the 3PMSF severe snow service symbol, making it eligible to satisfy Quebec’s winter tire mandate.
Find tires for your vehicle
Select your year, make, model, and trim to see all compatible tires available for delivery across Ontario and Quebec:
The 275/35R21 size indicates a tread width of 275 mm, a sidewall ratio of 35% (approximately 96 mm tall), and a 21-inch rim diameter. This size is commonly found on performance vehicles and heavy-duty trucks.
Is the 275/35R21 Pirelli SottoZero 3 a Winter tire?
Yes — the 275/35R21 Pirelli SottoZero 3 is categorized as a Winter tire. Winter tires are mandatory in Quebec from December 1 to March 15, and strongly recommended across Ontario during cold-weather months.
Is the 275/35R21 Pirelli SottoZero 3 3PMS rated?
Yes — the 275/35R21 Pirelli SottoZero 3 carries the 3PMSF (Three-Peak Mountain Snowflake) severe snow service symbol, confirming it meets recognized winter traction performance standards.
Is the 275/35R21 Pirelli SottoZero 3 studdable?
The listing for the 275/35R21 Pirelli SottoZero 3 does not specify studdable capability. Contact us or check the manufacturer’s documentation for confirmation.
Does the 275/35R21 Pirelli SottoZero 3 support run-flat driving?
No — the 275/35R21 Pirelli SottoZero 3 is not listed as run-flat.
Is the 275/35R21 Pirelli SottoZero 3 an XL (extra load) tire?
Yes — the 275/35R21 Pirelli SottoZero 3 carries an XL (extra load) rating, enabling it to handle higher inflation pressures and greater load capacities than a standard-load equivalent.
Can I order the 275/35R21 Pirelli SottoZero 3 with delivery to Ontario or Quebec?
Yes — XYZTires ships the 275/35R21 Pirelli SottoZero 3 to addresses across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).