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Michelin's Airstop name says it all. Their Airstop tubes use a proprietary butyl rubber that holds pressure longer so you won't have to top off your tires so much. These fine tubes are reinforced at the valve, too.
- 40mm valve length
|700c x 18 – 23||086699103574||10357|
|700c x 25 – 32||086699502957||50295|