New In Box 16" Bicycle Heavy Duty Thorn Resistant Tube 16x1.90-2.125 Schrader Valve 16" Bicycle Heavy Duty Thorn Resistant Tube A must if you don't like repairing flat tires!!!!! These High Quality thorn resistant 16" bicycle tubes are more than twice the thickness of standard bicycle tubes and provides superior puncture resistance. Standard American valve stem. 36mm Valve Stem Fits 16" x 1.90-2.125" T686 403686 601479046775
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