TUbliss® is a full circumference pneumatic rim lock which secures the entire tire bead to the rim, completely eliminating the use of a conventional tube! Sure, we know what you're thinking. You're looking at the photo and saying "I get it! I put that in my tire and the tube over it." Wrong. It's a whole new way to ride. The age of the tube is over. TUbliss® completely replaces the conventional tube while delivering several key performance features that's scoring points and lap times with racers and riders everywhere. Benefits: Virtually flat proof Runs cooler Quicker acceleration No pinched tubes Reduces unsprung weight Secures tire bead WEIGHT SAVINGS A weight savings of up to 3 pounds per wheel instantly translates into less rotating weight and increases acceleration. Less unsprung weight allows significant suspension performance gains. Experts say that eliminating a pound of rotating unsprung weight is equivalent to dropping 5 pounds of static weight!