Challenge CX/Gravel Latex Tube 700 x 28/35mm 47mm valve Bracket/Accessory Model: K7433

Model: K7433

Part Number: 05004351001

Model: K8640

Part Number: BT11 A00025

Barcode: 708752068292

Challenge CX/Gravel Latex Tube 700 x 28/35mm 47mm valve Bracket/Accessory Model: K7433Challenge produces the only seamless 'one piece' latex inner tubes on the market providing 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. Includes a removable core Presta valve making them compatible with both inline and external valve extenders. Brand: Challenge