... rubber 3,Valve: TR13 4,Weight:400g natural rubber inner tube 1,Model size :400-82,Material : natural ... CHINA , we can produce motorcycle tyre ,motorcycle tubeless tyre ,motorcycle inner tube ( natural rubber or butyl ) , If you have ... We can produce the specific goods ,just for you !inner tube (natural rubber or butyl) Valve:TR13 350-6, ... ,275-21,300-21,375-19,300-23,300-25,300-27,70/90-17,70/80-17,60 ...