1,motorcycle butyl tube 2,size:3.00-18 3,strong ... 5,long mileages Description of goods: Butyl motorcycle inner tubesize:3.00-181,own brand:WINHUA2,rubber content ... 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 tube are as below:Size/Specifications(Natural /Butyl Rubber)Valve ...