P4 Persist AS Plus

About the Pirelli P4 Persist AS Plus

All-Season Passenger Car, Crossover and SUV Touring tire. New and Updated Version of Pirelli's P4 Model.

Understanding the 225/55R17 size

In the size code 225/55R17, 225 is the section width in millimetres (about 8.9"). 55 is the aspect ratio — the sidewall height is 55% of the width, or roughly 123.8 mm. R17 means radial construction on a 17-inch wheel, giving an approximate overall diameter of 26.7".

The load index 97 means each tire supports up to 1,609 lbs — about 6,436 lbs across a full set of four. The speed symbol T certifies the tire to 118 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.

Tread life and grip ratings

This tire carries a UTQG rating of 820 A A. The treadwear grade of 820 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 A 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 $143.29 per tire, a full set of four costs $573.16. That sits close to the average for the 148 tires we stock in this size. Backed by a 85,000-mile treadwear warranty, that works out to roughly $6.74 per 1,000 miles across the set.