By choosing the right inner tube, you can influence the riding characteristics of your bike at a small additional cost. The standard inner tube available in all sizes offers the best compromise for everyday use. Article type: Inner tube Wheel size: 26 " Type: Slaverand / Presta / French Valve length: 42 mm Valve diameter: Ø 6.5 mm Color: black Weight: 96 grams Tire size: 20-559 / 26 x 3/4 25- 559/26 x 1.0 20-571 / 650 x 20c 23-571/650 x 23c 24-571/650 x 24c 25-571 / 650 x 25c Inner tube continental 26x1 / 20-571 / 25-599, stroke, French valve 42 mm, 181371