Schwalbe tubes are designed & manufactured to retain air pressure considerably longer than their competitors. Not only is each individual tube inflated & inserted into a mould to ensure that there is even wall thickness & excellent air retention, they are also stored under pressure for 24hrs to test air retention. Valve length of 40mm for standard version.

Features

• The Butyl rubber compound prevents pressure loss and fewer occassions to inflate.
• Quality control for safer cycling: Each tube is checked twice at the factory to ensure safer cycling.
• Having the correct pressure means fewer punctures and reduced rolling resistance.
• Extremely reliable!
• Extremely airtight!

Specifications

• Wheel Size- 20"
• Available Width- 40-106mm
• Tube Material- Butyl
• Valve Type- Schrader
• Valve Length- 40mm
• Removable Core- No
• Weight(Apprx.)- 95g