Solus TA51A

About the Kumho Solus TA51A

All-Season Grand Touring Passenger Car tire.

Features

* Resonance noise canceller* 3D chamfer on shoulder blocks and high silica compound* 3D interlocking sipes* Four wide linear grooves* High strength reinforced belt package and hybrid sidewall* 75,000 Mile Limited Treadwear Warranty (T Rated)* 65,000 Mile Limited Treadwear Warranty (H/V Rated)* Road Hazard Warranty* 30-Day Satisfaction Guaranteed Trial Warranty* UTQG 640 A A

Benefits

* Disrupts air pumping resonance to reduce noise generated in main channel grooves* Improves noise performance and extends tread life and prevents abnormal wear* Improve stability by increasing block rigidity* Maximizes water drainage for improved hydroplaning resistance* Enhances durability and longevity

Understanding the 225/40R18 XL size

In the size code 225/40R18, 225 is the section width in millimetres (about 8.9"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 90 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 25.1".

The load index 92 means each tire supports up to 1,389 lbs — about 5,556 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.

Tread life and grip ratings

This tire carries a UTQG rating of 640 A A. The treadwear grade of 640 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 $132.30 per tire, a full set of four costs $529.20. That is about 12% below the average price of the 144 tires we stock in this size. Backed by a 65,000-mile treadwear warranty, that works out to roughly $8.14 per 1,000 miles across the set.