Michelin Aircomp C4 Latex inner tube A Michelin bicycle inner tube usually consists of butyl. Butyl is a very elastic and at the same time airtight synthetic rubber. Due to its high elasticity, the Michelin inner tube is suitable for covering a wide variety of tire sizes. Specifications: Color: black Gender: unisex Material: rubber, latex Inch size: 26 x 1.75-2.25 ETRTO size: 47/57-559 Valve type: car valve Valve length: 42 mm Valve diameter: 10.8 mm Maximum valve pressure: 6 bar Weight: 150 grams Suitable for inch size: 26 x 1.75 26 x 1.80 26 x 1.85 26 x 1.90 26 x 1.95 26 x 2.00 26 x 2.10 26 x 2.125 26 x 2.20 26 x 2.25 Suitable for ETRTO size: 47-559 50-559 54-559 57-559