Slime smart mtb tubeslime inner tubes come preinstalled with slime tube sealant they install like a regular tube and repeatedly seal tyre punctures for up to 2 years features designed to seal tread area punctures valve type presta and schrader fits tyre sizes schrader 16 x 175 2 125 presta 24 x 175 2 125 presta 26 x 175 2 125 schrader 26 x 175 2 125 27 5 650b presta 29 presta 20 15 21 schrader buyslime tubesfrom chain reaction cycles the worlds largest online bike