A little over a year ago, we began our long-term test of a set of Cooper Discoverer STT Pro mud-terrain tires. For most, the excitement of getting new tires is also met with a feeling of uncertainty.

Tires are one of the most important upgrades you can make to improve the off-road performance of your vehicle, and mud terrains are some of the best tires for improved traction in any terrain. Cooper ...

With the advances in tire technology, the lines separating different tire types are now razor thin. We have all-terrain tires with incredible off-road performance and dedicated mudders that can still ...

The Discoverer STT PRO is Cooper Tire’s most advanced, extreme tire to date. This next-generation STT mud tire provides exceptional traction and performance in some of the harshest terrains on Earth.