Discoverer Rugged Trek LT

About the Cooper Discoverer Rugged Trek LT

Mud-Terrain Passenger Light Truck/SUV tire.

Features

* Dual off-road sidewalls, both sides offering long, deep cleats* Earth Diggers™ Technology with large shoulder scoops and lugs* Jutting ridges expel lodged stones* Stable Trac™ Technology - omni-directional, micro-gauge siping* Whisper Grooves™ Technology - specially designed sound barrier walls* M+S Rated* Free 45-Day Test Drive* 55,000 Mile Limited Treadwear Warranty - (LT sizes)

Benefits

* Enhance off road traction* Combine to forcefully dig into dirt, sand and mud* Protect against damage from sharp rocks* Enhances traction on roads and rough surfaces, improving stability and control* Reduce road noise

Understanding the LT315/70R17 E size

In the size code 315/70R17, 315 is the section width in millimetres (about 12.4"). 70 is the aspect ratio — the sidewall height is 70% of the width, or roughly 220.5 mm. R17 means radial construction on a 17-inch wheel, giving an approximate overall diameter of 34.4".

The load index 121 means each tire supports up to 3,197 lbs — about 12,788 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.

What the Cooper Discoverer Rugged Trek LT is built for

The Cooper Discoverer Rugged Trek LT is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. It carries an M+S (mud and snow) marking for light winter service. It is classified for mud-terrain (m/t) use.

Price and value

At $279.74 per tire, a full set of four costs $1118.96. That sits close to the average for the 61 tires we stock in this size. Backed by a 55,000-mile treadwear warranty, that works out to roughly $20.34 per 1,000 miles across the set.