Schwalbe Tube SV21. Reliable, high quality and very air tight inner tubes from Germany's number one manufacturer. All valves are nickel plated and valve inserts are replaceable.
Fits all of the following size tires:
(40-584) 27.5 x 1.50" (47-584) 27.5 x 1.75" (50-584) 27.5 x 2.00" (54-584) 27.5 x 2.10" (57-584) 27.5 x 2.25" (60-584) 27.5 x 2.35" (62-584) 27.5 x 2.40"
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![Schwalbe AV12A [Schrader]](https://www.perennialcycle.com/media/catalog/product/cache/56a9a99c1f99093f99b85c5dda4c2d1e/S/c/Schwalbe_AV12A_5.jpg)
![Schwalbe AV13F MTB Tube [Schrader]](https://www.perennialcycle.com/media/catalog/product/cache/56a9a99c1f99093f99b85c5dda4c2d1e/S/c/Schwalbe_AV13F_MTB_Tube.jpg)
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