Nashbar 55mm Long Valve Presta Valve Tube. The Nashbar Long Valve Road Tube uses high quality 100% butyl rubber made specifically for deep V aero style rims. This presta tube has a 55mm valve length. Specify size. 650c Fits tires 650x20 to 650x25. 700c Fits tires 700x20 to 700x25.
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