The Nishiki(R) Presta Valve 26'' 1.75-2.25 Bike Tube is a great spare to have on hand when commuting, hitting up the trails, or taking a casual ride. This bike tube is made for 26" tires and is equipped with a Presta valve that is 39mm in length. It fits tires that are 1.75-2.25 wide and is quick and easy to replace with your old bike tube. FEATURES: Replacement bike tube Best for cruiser, mountain, or comfort bikes Fits 26" tires with a width range of 1.75-2.25 Valve type: Presta Valve length: 39mm Tube width: 42mm Tube thickness: .95mm