Replace your worn out or flat bike tube with the Nishiki(R) Schrader Valve 27.5'' 1.75-2.25 Bike Tube. This bike tube is designed to fit 27.5" tires with a width range of 1.75-2.25 and features a Schrader valve that is 35mm in length. You'll be prepared for the rocky trails with the Nishiki(R) Schrader Valve 27.5'' 1.75-2.25 Bike Tube. FEATURES: Replacement bike tube Best for mountain bikes Fits 27.5" tires with a width range of 1.75-2.25 Valve type: Schrader Valve length: 35mm Tube width: 42mm Tube thickness: .95mm