... : natural rubber 3,Valve: TR134,Weight:400g5,We expot the tyre and inner tube to TRUPER , So you can trust our quality is ... quality and good service !We are one factory in CHINA , we can produce motorcycle tyre ,motorcycle tubeless tyre ,motorcycle inner tube ( natural rubber or butyl ... can produce the specific goods ,just for you !inner tube (natural rubber or butyl) Valve:TR13 350-6,350-7,300-8,350 ...