Pzero (PZ4)

About the Pirelli Pzero (PZ4)

Summer Passenger Car/SUV Sport Performance tire. Chosen as Original Equipment for the most Performance Oriented and Powerful Models on the Market.

Features

* Asymmetric tread pattern* Three wide longitudinal grooves* S-shaped tread design* Three solid central ribs* Pirelli Noise Cancelling System™ (NCS) - select items only* Pirelli Seal Inside™ (S-I) puncture proof technology - select items only

Benefits

* Improves braking performance and enhances handling and control* Faster water expulsion for an improved safety and control in potential aquaplaning situations* Optimal pressure distribution for safety under critical braking conditions, on straight and through corners* Improved braking and traction also at high speed thanks to an increased pattern stiffness with optimized and constant area* 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

Understanding the HL255/35R21 XL size

In the size code 255/35R21, 255 is the section width in millimetres (about 10"). 35 is the aspect ratio — the sidewall height is 35% of the width, or roughly 89.3 mm. R21 means radial construction on a 21-inch wheel, giving an approximate overall diameter of 28".

The load index 101 means each tire supports up to 1,819 lbs — about 7,276 lbs across a full set of four. The speed symbol Y certifies the tire to 186 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 Pzero (PZ4) is built for

The Pirelli Pzero (PZ4) is a summer tire, tuned for maximum dry and wet grip in warm conditions; it is not intended for near-freezing temperatures. Fitment category: Passenger Car.

Tread life and grip ratings

This tire carries a UTQG rating of 280 AA A. The treadwear grade of 280 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade AA measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade A reflects heat resistance at sustained speed (A is highest).

Price and value

At $370.46 per tire, a full set of four costs $1481.84. That is about 16% above the average of the 34 tires we stock in this size, reflecting its position in the range.