Nfera AU7

About the Nexen Nfera AU7

All-Season Ultra High Performance Passenger Car tire. Original Equipment on Select Vehicles.

Features

* Open, lateral grooves and optimal asymmetric design* Semi-ribs * Kerfs to reinforce block stiffness* 5 optimal variable pitch blocks* Increased number of biting edges through a fine sipe design* M+S Rated* 50,000 Mile/80,000 km Treadwear Mileage Warranty* Road Hazard Replacement Warranty (First 3/32 or 2 Years)* 36-Month Roadside Assistance

Benefits

* Maximize drainage capacity* Maximize handling stability and secure wide traction during cornering* Improved handling performance* Disperse pattern noise for a silent, comfortable ride* Increased snow performance

Understanding the 225/50R18 XL size

In the size code 225/50R18, 225 is the section width in millimetres (about 8.9"). 50 is the aspect ratio — the sidewall height is 50% of the width, or roughly 112.5 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 26.9".

The load index 99 means each tire supports up to 1,709 lbs — about 6,836 lbs across a full set of four. The speed symbol W certifies the tire to 168 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 Nexen Nfera AU7 is built for

Fitment category: Undefined.

Tread life and grip ratings

This tire carries a UTQG rating of 500 AA 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 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 $143.25 per tire, a full set of four costs $573.00. That is about 9% below the average price of the 109 tires we stock in this size. Backed by a 50,000-mile treadwear warranty, that works out to roughly $11.46 per 1,000 miles across the set.