Stan's introduced a completely new and revolutionary technology to the bike market in 2001. The company developed a method of replacing inner tubes with a liquid sealant that instantly repaired punctures. By eliminating the tube, off-road riders gained traction, control and comfort. Riders and racers around the world rely on Stan's proprietary tubeless technology. The sealant has been recognized as one of the most important innovations in the history of cycling. Since the beginning, Stan's has worked with athletes to help develop products through testing in real-world conditions. Our product range includes accessories for tubeless bikes such as conversion kits, sealants and valves.