Schwalbe SV3 16" standard inner tube with Presta valve. Fits Sizes: 47-305: 16 x 1.75 47-305: 16 x 1.90 50-305: 16 x 2.00 54-305: 16 x 1.95 54-305: 16 x 2.00 54-305: 16 x 2.10 57-305: 16 x 2.125 57-305: 16 x 2.25 62-305: 16 x 2.40 62-305: 16 x 2.50 Image is for illustration only. Specific sizes shown on the image may not be relevant to the tube in the description Why Choose Schwalbe Tubes? Besides the quality of the ingredients, the purity of the Schwalbe rubber compound is decisive for the quality of the tube. Before extrusion, the basic material is forced through a total of seven filters under enormous pressure. All tubes are inserted and inflated into a mould for the vulcanization process. This ensures an even wall thickness and high air retention. All tubes are inflated and stored for 24 hours to test for air retention. Afterwards, every tube is carefully checked by individual visual inspection. As a result of this process the Schwalbe inner tube has been highly valued by German bicycle dealers for its reliability for many years. A tube covers many tyre sizes through its high elasticity and quality. Tube no. 17 for instance works with tyres from a width of 28 mm up to 47 mm - a great advantage for multiple tyre combination and at the same time, is proof of the quality of the Schwalbe inner tube. All valves are nickel-plated and threaded and the valve core is always replaceable.