Schwalbe Inner Tube 20 x 1 1/8-3/8 inch (28 37-440 451) DV 32 mm

Suitable for the following sizes:

• 37-438 20X13/8
• 28-440 500X28A
• 37-440 500X28A
• 28-451 20X11/8
• 37-451 2013/8

Valve type Dutch 32mm

20'' inner tube. Dutch valve. 145 grams. Schwalbe inner tube 20 inch

• Colour: black
• Material: rubber
• Weight: 105 grams
• Valve type: 7A Dunlop valve (DV)
• Valve length: 32 mm

• 20 x 1 1/8
• 20 x 1 3/8

• 37-438
• 28-440
• 37-440
• 28-451
• 37-451

• 500 x 28A
• 500 x 35A

Product specifications:

• Valve type: Blitz / Dunlop / Dutch
• Valve length: 32 millimetres
• Weight: 105 grams
• Tyre sizes:
• 37-438 - 20 x 1 3/8
• 28-440 - 500 x 28A
• 37-440 - 500 x 35A
• 28-451 - 20 x 1 1/8
• 37-451 - 20 x 1 3/8

Schwalbe inner tube Standard 20 Inch Dutch - DV7A/37-438, 28-440, 37-440, 28-541, 37-451. Schwalbe inner tubes are reliable. Bicycle retailers value them for their high reliability. Every tube is inflated at the factory and tested for airtightness for 24 hours. The tube retains air pressure longer. In production, Schwalbe requires a very high butyl content and very high material purity. This means the Schwalbe inner tube retains air pressure significantly longer than other inner tubes. It is a group inner tube system: A Schwalbe inner tube is extremely elastic and fits multiple tyre sizes. This is why they are called group inner tubes. For example, inner tube number 19A fits tyre sizes from 27.5 inch to 29 inch and for widths from 40 to 62mm. Finally, the tube is 100% fully recyclable. Standard version: High reliability, proven for many years.