... . 5.High quality and large quantity. Product name: bicycle inner tubeModel: 26*2.125Specifications:1.Weight: 255g2.Material: butyl3.Valve: E/V ... are specializing in the production of barrow tyres, motorcycle tyres, bicycle tires, special tires, tubeless wheel, solid wheel ,foam wheels and ... development altogether. Welcome to our factory for a visit! butyl 26*2.125 bicycle tube