1.quailty controlled under ISO9001:2008 2.Long service ... within 25days after receive the depositmotorcycle inner tube 400-8 TR87 WEIGHT:0.4kgtensile strength:10mpaelongation>500%ths picture ... 18,80/90-17,2.75-21,3.00-8,3.00-10,3.00-12,3.00- ... 16,3.50-16,3.25-18,3.50-8,90/90-10,70/90-14,80/90- ... 10,110/90-10,120/90-10,4.00-8,4.00-12,4.50-12,4.50- ... 5.00-1010.Valve Modle:TR4,TR87 400-8 TR87 motorcycle inner tube