Continental X-King ProTection Mountain Bike Tire - Folding With a true all-around tread pattern, the X-King rules when it comes to varied terrain and changing trail conditions Aggressive shoulder lugs hold tight in the corners Rounded symmetrical knobs for excellent braking and climbing traction Black Chili Compound enhances grip and durability without compromising its fast-rolling characteristics ProTection casing features four fabric plies for exceptional ride quality, durability and puncture protection