AMIGO Inner Tube This strong inner tube from AMIGO has been crafted and produced with care so that you enjoy the best quality for a very competitive price! Specifications: Inch gauge: 26 x 1.75/2.5 ETRTO size: 47/62-559 Valve type: Dunlop valve Valve length: 45 mm Colour: black Material: rubber Weight: 245 grams