Challenge Latex Tubes - 700 x 33-40mm, 47mm Valve, Pack of 2 Rim Width (internal)_24 including those with complex contours

including those with complex contours

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Challenge Latex Tubes - 700 x 33-40mm, 47mm Valve, Pack of 2 Rim Width (internal)_24 including those with complex contoursPack of 2: 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,