SLIME HAS BEEN keeping tires inflated since 1989. The secret Slime compound is factory injected into the "smart tube", and seeks out and fills punctures. Slime works so well that many people have been known to go for the life of the Slime without flats, which could be over two years. If you really want to flat proof your bike, Slime is an integral step in making your ride flat free.
Pre-filled Slime tube with standard wall thickness