12 inch AMIGO inner tube (ETRTO size 47-203 and 62-203) fitted with Dunlop valve with a valve length of 40 millimeters. Falls under the inch sizes 12 1/2 x 1.75, 12 1/2 x 1.90 and 12 1/2 x 2 1/4. Best value for money This strong inner tube from AMIGO is developed and produced with care, so you enjoy the best quality at a very competitive price. General specifications: Color: black Material: rubber Type of valve: Dunlop valve Valve length: ±40 mm ETRTO size: 47-203 62-203 Inch size: 12 1/2 x 1.75 12 1/2 x 1.90 12 1/2 x 2 1/4