Schwalbe Sv15 (50mm Valve) 700 X 18-28mm Presta Tube - 50mm

Extremely airtight! The Butyl rubber compound prevents pressure loss and fewer occassions to inflate. Extremely reliable! 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

New 50mm valve version!