Proxes ST III

About the Toyo Proxes ST III

All-Season High Performance Passenger Light Truck/SUV and Crossover tire.

Features

* Dynamic directional tread design* Directional shoulder blocks* Lightning grooves* Arrowhead tapers* Multi-wave sipes* 40,000 Mile/64,000 Kilometer Limited Treadwear Warranty* 500 Mile Trial Offer

Benefits

* Provides a good balance between wet traction, dry handling and performance based looks* Stabilizes tread blocks for better braking performance and a quieter ride* Enables better water evacuation resulting in better wet performance* Delivers tread block stiffness resulting in better straight-line driving stability* Maximizes irregular wear for a smooth, quiet ride and improves light snow traction

Understanding the 255/50R19 XL size

In the size code 255/50R19, 255 is the section width in millimetres (about 10"). 50 is the aspect ratio — the sidewall height is 50% of the width, or roughly 127.5 mm. R19 means radial construction on a 19-inch wheel, giving an approximate overall diameter of 29".

The load index 107 means each tire supports up to 2,149 lbs — about 8,596 lbs across a full set of four. The speed symbol V certifies the tire to 149 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 Toyo Proxes ST III is built for

The Toyo Proxes ST III is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it passed a standardised severe-snow traction test. It is classified for highway terrain(h/t) use.

Tread life and grip ratings

This tire carries a UTQG rating of 500 A A. The treadwear grade of 500 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 $209.63 per tire, a full set of four costs $838.52. That sits close to the average for the 108 tires we stock in this size. Backed by a 40,000-mile treadwear warranty, that works out to roughly $20.96 per 1,000 miles across the set.