Kenda 05181310ST - Super Tuff Tubes, 120/100-18 - TR-6 Valve Stem

Tough 0.142-0.146 inch butyl rubber tubes are designed to resist punctures and pinch flats. Nearly three times thicker than stock tubes for extra flat protection. Fits all popular MX sizes. Tubes are twice as thick as factory tubes and are specifically designed for motocross and off-road use.