Champiro HPY

About the GT Radial Champiro HPY

Summer Max Performance Passenger Car tire.

Features

* Asymmetric tread pattern design* Solid center rib* Four wide circumferential tread grooves* Full silica tread compound* UTQG: 300 AA A* 30 Day/500 Mile Test Drive Satisfaction Guarantee

Benefits

* Provides outstanding cornering on wet and dry surfaces* Improves straight line stability and steering response* Enhances water evacuation for excellent hydroplaning resistance* Enhanced grip on wet surfaces* Low noise level at high speeds

Understanding the 255/45ZR20 size

In the size code 255/45R20, 255 is the section width in millimetres (about 10"). 45 is the aspect ratio — the sidewall height is 45% of the width, or roughly 114.8 mm. R20 means radial construction on a 20-inch wheel, giving an approximate overall diameter of 29".

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.

Tread life and grip ratings

This tire carries a UTQG rating of 300 AA A. The treadwear grade of 300 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 $139.49 per tire, a full set of four costs $557.96. That is about 42% below the average price of the 157 tires we stock in this size.