The Cooper Discoverer AT3 4S is a comfortable on-road all-terrain tire designed for maximum grip in wet and snowy conditions while keeping its durability off-road. Patented saw-tooth technology and deep center grooves help reduce hydroplaning and increase snow traction. The Discoverer AT3 4S 5-Rib tread pattern provides great off-road capability and zig-zag siping increase biting edges for more stability and control.
The 255/70R18 Cooper Discoverer AT3 4S has a diameter of 32.13", a width of 10.2", mounts on a 18" rim and has 647 revolutions per mile. It weighs 42 lbs, has a max load of 2535 lbs, a maximum air pressure of 44 psi, a tread depth of 14/32" and should be used on a rim width of 6.5-8.5".