Roadian AT PRO RA8

About the Nexen Roadian AT PRO RA8

All-Weather All-Terrain Passenger Light Truck/SUV tire. Original Equipment Fitment on RAM Vehicles. Three-Peak Mountain Snowflake Winter tire Certification is not Available on Original Equipment and Flotation tire sizes.

Features

* Dual block design* Micro grooves* Staggered center rib and increased block strength* Wide shoulder block design and enhanced block stiffness* M+S Rated* Carries the Three-Peak Mountain Snowflake (3PMSF) symbol (The 3PMSF is not available on OEM or Flotation sizes)* 50,000 Miles/80,000 km Treadwear Mileage Warranty (P-Metric Only)* 40,000 Miles/60,000 km Treadwear Mileage Warranty (LT-Metric Only)* Road Hazard Replacement Warranty (First 3/32 or 2 Years)* 36-Month Roadside Assistance

Benefits

* Prevents gravel from being caught and damage caused from external impact* Enhances driving performance and traction on wet or snow covered roads * Provide greater biting for off-road use* Increase stability and durability, even on tough roads* Meets the required performance criteria for Use in Severe Snow Conditions

Understanding the 255/70R18 size

In the size code 255/70R18, 255 is the section width in millimetres (about 10"). 70 is the aspect ratio — the sidewall height is 70% of the width, or roughly 178.5 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 32.1".

The load index 113 means each tire supports up to 2,535 lbs — about 10,140 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.

What the Nexen Roadian AT PRO RA8 is built for

It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it passed a standardised severe-snow traction test.

Tread life and grip ratings

This tire carries a UTQG rating of 560 A B. The treadwear grade of 560 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 B reflects heat resistance at sustained speed (A is highest).

Price and value

At $167.25 per tire, a full set of four costs $669.00. That is about 9% below the average price of the 66 tires we stock in this size. Backed by a 50,000-mile treadwear warranty, that works out to roughly $13.38 per 1,000 miles across the set.