Motolis Heavy Duty Tire Tubes Motolis Heavy Duty motorcycle tubes are crafted from 100 premium butyl rubber and designed with a 3mm thickness, providing an unparalleled solution for riders seeking ultimate protection from flats during competitive or extensive outings. The carefully engineered thick body of the tube enhances puncture resistance, even when air pressures are low, and retains air pressure for extended durations. Incorporating a superior quality air valve, these tubes guarantee a lasting air seal, fortifying your ride against flat tires in even the most demanding terrains. Features: 100 butyl rubber 3mm thick for superior flat resistance Removable valve core Valve Stem Types: Tr-4 - Straight metal stem (8mm diameter) Js-87C - Tall 90 o metal stem (10mm diameter)