Optimum grip and reliability to win races. Rolling efficiency: a rear-specific tire designed to maximize rolling efficiency on mixed and hard-packed terrain. Extra Grip: Maximum grip to win races, even at low temperatures (down to 3 degrees Celsius) with the Michelin Magi-X compound.Puncture and pinch protection: Optimal puncture and pinch protection specifically developed for Enduro World Cup riders. Tubeless ready.E-Bike ready. Casing: 2 x 55 TPI.Foldable beads. Recommended Tube: A4.