Who Makes It: Mickey Thompson
Features: Radial construction; self-cleaning, high-void, siped lugs; three-ply sidewalls; and six-ply tread.
Sizes: Includes 33 to 38 inches, with more arriving in 2006.
Designed for: Have fun in mud and snow.
For more info: www.mickeythompsontires.com
Who Makes It: Pitbull
Features: Deep lugs, "Tear It Up" construction for cut, puncture, and heat resistance, and rim guards. Also "All Bite No Bark" technology to keep things quiet.
Sizes: 35 inches, although moments after you read this, 33-inch sizes will be available.
Designed for: They call it the "All Terrain Extra" tire.
For more info: www.pitbulltires.com
Who Makes It: Pirelli
Features: It's made up of a specialized, robust compound, and has a heavily blocked tread pattern with serious siping and broad central channel.
Sizes: Includes 31 to 33 inches.
Designed for: Light-duty challenges.
For more info: www.us.pirelli.com
Who Makes It: Yokohama
Features: Big ol' shoulder buttresses with protectors, larger scoops from the shoulder blocks to help the tread edges chuck dirt and mud, taper-cut lugs, and an additional groove within the blocks for extra traction and stability.
Sizes: Includes 31 to 35 inches.
Designed for: Mud and rocks.
For more info: www.yokohamatire.com
Open Country M/T
Who Makes It: Toyo Tires
Features: The radial has hook-shaped tread blocks, scalloped shoulder blocks, and hi-po cap ply construction, as well as something called CASPAN (Computer-Aided Simulator for Pattern Noise). In other words, shhhhh.
Sizes: 33 to 40 inches.
Designed for: Roll it over mud, sand, and loose gravel.
For more info: www.toyo.com
Who Makes It: ProComp
Features: The directional tire has opposed-angle steel belts, is three-ply, and sports XTC, although not that kind of performance: That stands for a special extreme-traction compound.
Sizes: Includes 33 to 40 inches, with a new-for-2006 38.5-incher.
Designed for: Hit the trail-or any terrain.
For more info: www.procomptires.com