Challenge Latex Tube 700 X 23/28c, 48mm Presta Valve Perforated Not all stomachs have the

Not all stomachs have the capability to handle the artificially flavoured

Recruits oxygen to the muscles

* The metal tire lever is designed for durability and for emergency use only

so it's more than ready to hit the trail for any adventure

Challenge Latex Tube 700 X 23/28c, 48mm Presta Valve Perforated Not all stomachs have theDescription Latex inner tubes are far more supple than normal butyl tubes. They adapt quickly to the tire changing shape while cornering and rolling. The unique Challenge seamless latex inner tube saves more than 3 watts per wheel over a butyl inner tube according to German, Finnish, Belgian, Dutch, UK and Americal testing. Challenge produces the only seamless 'one piece' latex inner tubes on the market providing a smooth, balanced ride with no pucker