WhatApart 16×2.125 Inner Tube with Angled Valve (Bent Valve stem) 16 x 2.125 for Electric/Pedal Bikes Review Posted on April 30, 2019 By DuskunkTagged Cycling, Outdoor Recreation, Sports & Outdoors, Tubes Brand new 16×2.125 Inner Tube with Angled Valve for Gas/Electric/Pedal Bikes also known as 54-305/16×2.125 tube Ship from USA warehouse