As we discussed in the first question, UTV tire treads are designed to perform on specific terrains. Here's a breakdown of different terrain types and which SXS tires work best for each.
Mud/Sand/Snow/Loose Loam
Side-by-side tires that excel in snow, loose loam, sand, and other soft terrains are characterized by tread blocks with wide spacing and significant depth for maximum traction. This extra-deep spacing allows the tire to "sink" and grab large chunks of terrain, which is essential when the landscape is loose and easily displaced. Tires for this terrain also typically operate at lower PSI to increase the tire contact patch and maximize flotation.
Hard Pack/Trail/All-Terrain
Tires for this terrain type are often characterized as "AT" or "All-Terrain" tires. They feature an ideal mixture of tread depth and spacing that isn't too deep to fit the mud category, but still offers plenty of grip and traction for handling some loose soil and light mud. With numerous tread block edges, these tires provide excellent "bite" on densely packed dirt, small rocks, roots, and unsteady, slightly muddy ground.
Rock/Extreme Off-Road
Tires that excel in rock crawling feature very aggressive tread patterns paired with softer ("sticky") rubber compounds to maximize gripping power*. Similar to mud and loose loam tires, rock and extreme off-road tires feature deep lugs with wide voids. They also include reinforced sidewalls to prevent punctures and sidewall lugs that increase traction on steep and/or sideways angles. Finally, rock crawling tires are typically taller to improve ground clearance and increase approach and departure angles, helping prevent your UTV from scraping and bottoming out.
*This can often come at the expense of tread life, so be aware of the trade-offs.
Street/Pavement/Concrete
UTV tires designed for use on streets and other hard surfaces feature shallow, closely packed tread blocks. The closely packed tread prevents the loud hum that occurs with more aggressive tires at higher speeds. This design also ensures consistent ground contact, which is critical for sensitive steering and handling while preventing the floating and wobbling that can occur when driving on hard surfaces. There aren't many "pure" street tires designed for UTVs or side-by-sides, so you often need to find a less aggressive all-terrain tire instead.