... /8 2.Material: natural rubber 3.ph rate: <200 4.Rim diameter: 26 in. 5.High quality and large quantity. Product ... name: bicycle inner tubeSize: 28*1 3/8x1 5/8Specifications:1. ... P, T/T, West Union9.Delivery time: 10-15 days High Tensile Strength & rubber contentUnique feature of anti-aging, good ... 16x2.5, 18x2.125, 18x2.5, 16x3.0 26*1 3/8 bicycle tube