A Schwalbe inner tube holds air pressure significantly longer. The quality of the components and the purity of the rubber compound are key to the quality of the inner tube.

• Article number: 10400050
• EAN: 4026495748254
• Brands: Schwalbe
• Model: AV21
• Material: Butyl
• Valve length (mm): 40
• Valve Type: Shrader (Auto)
• Compatible tire: 27.5"
• Net weight (g): 205
• Inner tube size (ETRTO)
• 40-584 / 62-584
• 40 - 584 / 62 - 584
• 40 - 58462 - 584
• Inner tube size (French): 650B
• Inner Tube Size (Inch): 27.5x1.50 / 27.5x2.40
• Tire type: Inner tube
• Bandwidth
• 4062
• Inner or outer tube: Inner tube
• (ETRTO) Tire size
• 40 - 58462 - 584
• Color: Black

Product specifications:

• Valve type: Auto / Schrader
• Valve length: 40 millimeters
• Weight: 205 grams
• Tire sizes:
• 40-584 - 27.5 x 1.50 650B
• 47-584 - 27.5 x 1.75 650B
• 50-584 - 27.5 x 2.00 650B
• 54-584 - 27.5 x 2.10 650B
• 57-584 - 27.5 x 2.25 650B
• 60-584 - 27.5 x 2.35 650B
• 62-584 - 27.5 x 2.40 650B
• 44-584 - 27.5 x 1.65 650 x 42B

Schwalbe Inner Tube Standard 27.5x1.75 Auto - AV21/40-584, 47-584, 50-584, 54-584, 57-584, 60-584, 62-584. Schwalbe inner tubes are reliable. Bicycle retailers value them for their high level of reliability. Each tire is inflated at the factory and tested for air tightness for 24 hours. The tire holds air pressure longer. In production, Schwalbe requires a very high butyl content and extremely high purity of the material. This allows the Schwalbe inner tube to hold air pressure significantly longer than other inner tubes. It is a group-tube system: A Schwalbe inner tube is extremely elastic and fits multiple tire sizes. This is why they are called group-tubes. For example, the inner tube with number 19A fits tire sizes from 27.5 to 29 inches and widths from 40 to 62 mm. Finally, the tire is 100% recyclable. Standard version: Highly reliable, proven over many years.