Challenge Seamless Latex Inner Tube Tube Presta Length: 47mm 700C 33-40C

Challenge Latex Tube - 700 x 33 - 40mm 47mm Presta Valve. Seamless one-piece latex inner tubes provide a smooth balanced ride with no pucker or bump like those found on other tubes. Latex tubes are lighter thinner and more flexible than a butyl tube increasing your comfort lowering your rolling resistance and helping to prevent flats. The tube also includes a removable core Presta valve making them compatible with both inline and external valve extenders.

Seamless & smooth latex material no bumps at the valve

Improves rolling resistance and comfort

Strong and extremely elastic thus very reliable

Is lighter weight than standard butyl and some superlight butyl tubes

Has a two-piece removable valve core for valve extender use

Handmade construction