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. Specification: Size: 26" x 1.35/1.75". Valve: Presta. Material: Butyl rubber. Valve length: 40mm.
Best Price: £4.30 from Merlin Cycles