1,motorcycle butyl tube 2,size:3.00-18 3,strong tear strength 4,good air-tightness 5,long mileages Description of goods: Butyl motorcycle inner tubesize:3.00-181,own brand:WINHUA2,rubber content:18%-35%3,OEM accepted4,samples available5,ISO9001 INMETRO SONCAP,CIQ...we have Natural rubber and butyl rubber inner tube of motorcycle tyres,Bicycle tire,trucks tyre and so on.sizes of Motorcycle inner ...