... 3,Valve: TR13 4,Weight:400g natural rubber inner tube 1,Model size :400-82,Material ... ,Valve: TR134,Weight:400g5,We expot the tyre and inner tube to TRUPER , So you can trust ... our quality is the best !Soft in hand but strong in the tyre ... factory in CHINA , we can produce motorcycle tyre ,motorcycle tubeless tyre ,motorcycle inner tube ( natural rubber or butyl ) , ...