Stan's NoTubes Race Tire Sealant 1LStan's NoTubes Race Tire Sealant 1L is a high performance formula developed alongside world class athletes for race day and long distance events. It increases the quantity of sealing crystals by 200% compared to the original formula. The addition of XL sized crystals allows for improved sealing capabilities to handle larger punctures encountered during competitive riding or endurance efforts. This concentrated formula requires direct installation into