MICHELIN Starcross MS3 100/90-19•Soft/Intermediate Terrain Tires•Developed especially for serious racers•Reversible tread pattern with a tread-wear indicator that clearly shows when to reverse the tire on the rim when the "M" disappears, the tire can be turned around•Mirror-image knobs provide equal traction in both directions on a wide range of Lineup Terrain•StarCross MS3 features an M-block knob pattern with reinforced scoop-like knobs that are widely spaced•Strong casings incorporate three cross-woven polyamide plies•Staggered shoulder knobs for superb cornering action•Super stiff sidewalls for high-impact shock absorption on landings•Flexible tread minimizes rebound on rough tracks and helps keep tire in contact with the ground