1.At least running 100,00kms without quality problem under normal use. 2.Certificate:DOT,GCC,ECE,etc Product Specification: Size PLY Rating Load Index Speed Index Rim SizeSingle Max InfationDual Max InfationInflated Dimensions Section(mm)Inflated Dimensions Overall(mm)12.00R2018154/151K8.503750(kg)/830(kpa)3450(kg)/830(kpa)315112511.00R2018152/149L8.003075(kg)/930(kpa)3250(kg)/930(kpa)293108511. ...