The Continental Race Wide is a thick inner tube made of heavy rubber for excellent durability and reliability. A versatile tire suitable for travel and commuting, among other things. Specifications: Color: black Material: rubber Inch-size: 27 inch ETRTO size: 25-622 - 32-630 Type of bicycle: city bike Valve type: French valve Valve length: 60 mm Weight: 125 grams ETRTO size: 25-622 28-622 32-622 25-630 28-630 32-630 Inch size: 27 x 1.00 27 x 1 1/8 27 x 1 1/4 French size: 700 x 25C 700 x 28C 700 x 32C