Extremely airtight! The Butyl rubber compound prevents pressure loss and fewer occasions 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.

• Material: Butyl rubber
• Used for: Universal
• Compatible sizes (inches): 18 x 1.75 to 18 x 2.35
• Compatible sizes (ETRTO): 47 - 355 to 60 - 355
• Valve length: 40 mm
• Valve standard: SV, changeable (Sclaverand, Presta, French valve, racing bike valve)