20*1.95 bike inner tube 1. material: natural rubber/butyl 2.Various size & pattern 3.A/V, E/V, ... /V,D/V avavailable 20*1.95 bike inner tube 1. Various Size for motorcycle tube:300-17, 300-18, 250-17, 275 ... : 1) natural rubber tube ; butyl rubber tube 2) ATV tyre, motor van tyre, motor bicycle tire and tube, 3) motorbike tyre and tire, auto bicycle tyre, Motor vehicle tyre and tube, 4 ...