| Season | |
|---|---|
| width | |
| profile | |
| diameter | |
| Load Index | |
| Speed Index | |
| Brand | |
| Vehicle Type | Passenger |
| Sidewall | Black Sidewall |
| Warranty | 80000 |
| Min Wheel Width | 8.5 |
| Max Wheel Width | 10 |
| Tread Depth | 10 |
| EV Compatible | EV Compatible |
| OE Stamp | AR – Alfa Romeo |
| uTQG | 280 AA A |
| XL | XL |
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Listed are full spes for this 255/40R21 Pirelli P Zero (PZ4) – Summer tire — including load/speed ratings, certifications (3PMS / studdable / run-flat / XL), UTQG treadwear/traction/temperature grading, and shipping details for Ontario and Quebec.
255/40R21 Pirelli P Zero (PZ4) – is positioned as a summer / passenger fitment tire with clear Ontario and Quebec delivery details.
| Buying option | What to compare |
|---|---|
| Lowest sticker price tires | Check shipping, stock status, delivery timing, and whether the final landed cost is still lower after checkout. |
| XYZTires.com | Assist with fitment context, Ontario/Quebec free delivery, and product specific FAQ. |
255/40R21 Pirelli P Zero (PZ4) –
XL (Extra Load) rating supports higher inflation pressure and carrying capacity than standard load tires.
255/40R21 Pirelli P Zero (PZ4) – is positioned as a summer tire built around a 255 mm section width and 21-inch wheel fitment.
In practical terms, this size combines a 40-series sidewall of about 102 mm with a 21-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
Feature wise, this tire indicates an XL extra load rating, load index 102 and speed rating Y (~300 km/h), UTQG 280 AA A when provided by the manufacturer.
The 255/40R21 size breaks down as follows:
The 255/40R21 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.
Examples from our vehicle fitment lookup include:
Select your year, make, model, and trim to see all compatible tires available for delivery across Ontario and Quebec:
The 255/40R21 size indicates a tread width of 255 mm, a sidewall ratio of 40% (approximately 102 mm tall), and a 21-inch rim diameter. This size is commonly found on performance vehicles and heavy duty trucks.
Yes — the 255/40R21 Pirelli P Zero (PZ4) – is categorized as a Summer tire.
On the 255/40R21 Pirelli P Zero (PZ4) -, the service description 102Y indicates a load index of 102 and a speed rating of Y (approximately 300 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.
No — the 255/40R21 Pirelli P Zero (PZ4) – is not listed as 3PMS rated.
This tire, 255/40R21 Pirelli P Zero (PZ4) – is not studdable. Contact us for any questions.
No — the 255/40R21 Pirelli P Zero (PZ4) – is not a run flat.
Yes — the 255/40R21 Pirelli P Zero (PZ4) – carries an XL (extra load) rating, enabling it to handle higher inflation pressures and greater load capacities than a standard load equivalent.
Speed rating Y on the 255/40R21 Pirelli P Zero (PZ4) – corresponds to a maximum sustained speed of approximately 300 km/h under full load. Always obey posted speed limits regardless of tire rating.
Yes — XYZTires ships the 255/40R21 Pirelli P Zero (PZ4) – to addresses across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).
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.
