Slick – micro dots and sipes, basically a slick with some texture
SS – semi-slick with mild dots leading to three rows of cornering ridges
SK – semi-knob (tested) with square center knobs and pronounced cornering ridges
X1 – tightly-packed center knob section with transition & cornering knobs
EXT – basically an MTB tread with widely spaced transition & cornering knobs for mud clearance
ZSG Tread Compound Zero Slip Grip compound has better, more consistent grip from freezing to too-hot-to-ride temps. And they say it’s just as durable. So, the tires will grip great no matter what time of year you’re riding.
Beadlock Redsigned bead designed to fit better on any tubeless-read rim design (hooked or hookless), and often seat with only a floor pump