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: 28/29 x 1.30-1.60 ETRTO size: 28/47-622/635 Valve type: French valve Valve length: 48 mm Colour: black Material: rubber Weight: 270 grams