Thorn Resistant Bicycle Tube 29" x 2.00 - 2.40 Schrader Valve 35mm Valve Stem 29" Bicycle Heavy Duty Thorn Resistant Tube (Sold as One Tube) A must if you don't like repairing flat tires!! These High Quality thorn resistant 29" bicycle tubes are more than twice the thickness of standard bicycle tubes and provides superior puncture resistance.
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