Dura Grappler

About the Nitto Dura Grappler

Highway-Terrain Passenger Light Truck/SUV tire.

Features

* Bridges added between tread blocks to join individual blocks into continuous ribs and combined with harder compounds* Dura-Belt® 3Steel Belted Technology reinforces and stabilizes the tire’s internal construction* Dura Grappler® features two distinct sidewall designs. Tread patterns will vary by size: LT-Metric sizes are offered in a durable 4-rib design, while P-Metric sizes have a quiet 5-rib design* 60,000-Mile Limited Treadwear Warranty for P-Metric/Metric sizes* 45,000-Mile Limited Treadwear warranty for Dura-Belt® sizes

Benefits

* Stabilizes the tire and reduces tread flex for improved tread life* To help reduce irregular wear and improve treadlife* Ability to customize your look

Understanding the 255/70R18 XL 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 117 means each tire supports up to 2,833 lbs — about 11,332 lbs across a full set of four. The speed symbol S certifies the tire to 112 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 600 A B. The treadwear grade of 600 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 $171.75 per tire, a full set of four costs $687.00. That sits close to the average for the 66 tires we stock in this size. Backed by a 60,000-mile treadwear warranty, that works out to roughly $11.45 per 1,000 miles across the set.