Listed are full spes for this 275/45R21 Pirelli P Zero (PZ4) Sport Summer tire — including load/speed ratings, certifications (3PMS / studdable / run-flat / XL), UTQG treadwear/traction/temperature grading, and shipping details for Ontario and Quebec.
Why choose the 275/45R21 Pirelli P Zero (PZ4) Sport?
275/45R21 Pirelli P Zero (PZ4) Sport is positioned as a summer / performance focused / passenger fitment tire with clear Ontario and Quebec delivery details.
Free shipping • 1–3 business days (Ontario and Quebec)In stockOntario & Quebec delivery focusSpecs, fitment notes, and FAQ on page
Best fit if you want
Warm weather grip, responsive steering, and sportier handling.
Drivers who already switch to dedicated winter tires when temperatures drop.
Vehicles designed for run flat tires with a working TPMS system.
Fitments that require XL (extra load) capacity.
Double-check if you need
Quebec winter tire compliance or cold weather winter driving.
A one tire year round setup for Ontario or Quebec.
Buying option
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Assist with fitment context, Ontario/Quebec free delivery, and product specific FAQ.
Quick Specs
Size: 275/45R21
Brand / Model: Pirelli P Zero (PZ4) Sport
Season: Summer
Vehicle Type: Passenger
Load / Speed: 110H (Load index 110 supports up to 1060 kg per tire; speed rating H rated up to 210 km/h)
Certifications: Run flat, XL (Extra Load)
Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
275/45R21 Pirelli P Zero (PZ4) Sport
Run flat design allows you to still drive a short distance despite having a puncture. Must be used with a compatible vehicle and TPMS.
What these tire specs mean
Load Index 110 is the tire’s standardized carrying capacity, supporting up to 1060 kg per tire. Use it to confirm the tire meets or exceeds the load rating listed on your vehicle placard.
Speed Rating H indicates the tire’s maximum sustained speed capability under proper load and inflation. This is approximately 210 km/h under proper load and inflation.
UTQG 280 AA A is the manufacturer treadwear, traction, and temperature grading system. It is useful for comparing tires from the same brand, but it should not be treated as an exact mileage promise.
Summer tires are built for warm weather grip and should not be used as winter tires in Ontario or Quebec cold weather conditions.
XL means Extra Load. These tires are designed to carry higher loads at higher inflation pressures than a standard load tire in the same size, which matters for heavier vehicles, loaded vehicles, or factory fitments that require XL.
Run flat tires can temporarily support the vehicle after pressure loss, allowing you to keep control and drive a limited distance to service. Note that they require a compatible vehicle setup and a working TPMS system.
Vehicle Type helps identify whether the tire is intended for passenger, light truck, commercial, or similar service categories.
How this tire is positioned
275/45R21 Pirelli P Zero (PZ4) Sport is positioned as a summer tire built around a 275 mm section width and 21-inch wheel fitment.
In practical terms, this size combines a 45-series sidewall of about 124 mm with a 21-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
Feature wise, this tire indicates run flat construction, an XL extra load rating, load index 110 and speed rating H (~210 km/h), UTQG 280 AA A when provided by the manufacturer.
About the 275/45R21 tire size
The 275/45R21 size breaks down as follows:
275 — tread width in millimetres
45 — sidewall height as a percentage of tread width (approx. 124 mm)
R21 — fits a 21-inch rim
The 275/45R21 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 P Zero (PZ4) Sport in 275/45R21
Run flat: built to support temporary driving after pressure loss on compatible vehicles with TPMS.
XL (Extra Load): designed for higher load capacity at higher inflation pressure than standard load tires.
UTQG: 280 AA A — treadwear, traction, and temperature grading to help compare similar tires.
Load/Speed: 110H — load index 110 supports up to 1060 kg per tire, while speed rating H is rated up to 210 km/h.
Vehicles that commonly use 275/45R21 tires
Examples from our vehicle fitment lookup include:
2024 Chevrolet Blazer EV
2024 Mazda CX-90
2024 Mercedes-Benz GLE450e
2023–2024 Mercedes-Benz EQS450
2023–2024 Mercedes-Benz EQS580
2022–2024 Jeep Grand Cherokee
2022–2024 Jeep Grand Cherokee 4xe
2021–2024 Jeep Grand Cherokee L
2021–2024 Mercedes-Benz GLE53
2020–2024 Ford Explorer
More vehicles that use this size
2020–2023 Lincoln Aviator
2020–2024 Mercedes-Benz GLE 53
2020–2024 Mercedes-Benz GLE350
2020 Mercedes-Benz GLE43
2020–2024 Mercedes-Benz GLE450
2020–2024 Mercedes-Benz GLE580
2020–2024 Mercedes-Benz GLE63
2020–2024 Mercedes-Benz GLS450
2020–2024 Mercedes-Benz GLS580
2019 Mercedes-Benz GLE 43
Find tires for your vehicle
Select your year, make, model, and trim to see all compatible tires available for delivery across Ontario and Quebec:
Frequently asked questions — 275/45R21 Pirelli P Zero (PZ4) Sport Summer
What does the 275/45R21 tire size mean?
The 275/45R21 size indicates a tread width of 275 mm, a sidewall ratio of 45% (approximately 124 mm tall), and a 21-inch rim diameter. This size is commonly found on performance vehicles and heavy duty trucks.
Is the 275/45R21 Pirelli P Zero (PZ4) Sport a Summer tire?
Yes — the 275/45R21 Pirelli P Zero (PZ4) Sport is categorized as a Summer tire.
What does the 110H rating mean on the 275/45R21 Pirelli P Zero (PZ4) Sport?
On the 275/45R21 Pirelli P Zero (PZ4) Sport, the service description 110H indicates a load index of 110 and a speed rating of H (approximately 210 km/h). The load index is the tire’s standardized carrying capacity, while the speed rating is the maximum sustained speed under proper load and inflation. Always match or exceed your vehicle manufacturer’s required load and speed ratings.
Is the 275/45R21 Pirelli P Zero (PZ4) Sport 3PMS rated?
No — the 275/45R21 Pirelli P Zero (PZ4) Sport is not listed as 3PMS rated.
Is the 275/45R21 Pirelli P Zero (PZ4) Sport studdable?
This tire, 275/45R21 Pirelli P Zero (PZ4) Sport is not studdable. Contact us for any questions.
Does the 275/45R21 Pirelli P Zero (PZ4) Sport support run flat driving?
Yes — the 275/45R21 Pirelli P Zero (PZ4) Sport is listed as a run flat tire. Run flat tires require a compatible vehicle with a functioning Tire Pressure Monitoring System (TPMS).
Is the 275/45R21 Pirelli P Zero (PZ4) Sport an XL (extra load) tire?
Yes — the 275/45R21 Pirelli P Zero (PZ4) Sport carries an XL (extra load) rating, enabling it to handle higher inflation pressures and greater load capacities than a standard load equivalent.
What does speed rating H mean on the 275/45R21 Pirelli P Zero (PZ4) Sport?
Speed rating H on the 275/45R21 Pirelli P Zero (PZ4) Sport corresponds to a maximum sustained speed of approximately 210 km/h under full load. Always obey posted speed limits regardless of tire rating.
Can I order the 275/45R21 Pirelli P Zero (PZ4) Sport with delivery to Ontario or Quebec?
Yes — XYZTires ships the 275/45R21 Pirelli P Zero (PZ4) Sport to addresses across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).
Why buy the 275/45R21 Pirelli P Zero (PZ4) Sport from XYZTires if another tire looks cheaper?
A lower sticker price is only one part of the tire purchase. Compare the final delivered cost, shipping time, stock status, fitment details, and whether the tire category matches how you drive. XYZTires focuses on clear Ontario and Quebec delivery details, product specifications, and fitment context so you can compare the real delivered value, not just the first price you see.
Other available sizes — Pirelli P Zero (PZ4) Sport
