1,motorcycle butyl tube 2,size:3.00-18 3,strong tear strength 4,good air-tightness 5,long ... of goods: Butyl motorcycle inner tubesize:3.00-181,own brand:WINHUA2,rubber content:18%-35%3,OEM accepted4,samples available5,ISO9001 INMETRO ... 473.00-17TR40.453.00-18TR40.473.25/3.50-16TR40.473.25/3.50-18TR40.542.75-21TR40.553.75-19TR40 ... /90-16TR40.614.00-12TR40.644.50-12TR40.72 3.00-18 Motorcycle Butyl tube