The Marathon Saddle. The evolution of the most successful endurance mountain bike saddle in recent times. The supporter of countless Topeak Ergon Racing Team wins. The SM3 has been re-engineered into the SMR3 with massive input from Alban Lakata. Featuring a new generation shell with increased flex, yet greater stability, the flanks feature more give for more freedom of movement for the thighs. The saddle platform geometry has been optimized, and contours improved. Padding comes from the latest AirCell technology with micro air pockets for increased rebound, support and damping.