Cush Core Pro SetCUSH CORE PRO TYRE INSERT SET The original full performance version. Cush Core PRO allows you to push the limits of your tires and suspension to new levels. The best choice for the majority of wheels, terrain, and riders. Absorbs Shock and Vibration More control and less rider fatigue. Lower Tire Pressure Optimal tire pressure with no compromises. Reduces Flats Patented profile reduces pinch flats. Increased Traction Supple, compliant tread patch