The Serfas Presta Valve Tube is a dependable companion for cyclists who value performance and reliability. Designed for 700c tires, this tube offers a secure and airtight seal with its Presta valve, making it ideal for maintaining optimal tire pressure during rides. With its durable construction, this tube is ready to tackle road and trail adventures alike, ensuring you can ride with confidence. | Serfas 700 X 18/28C Presta Valve Tube