Schwalbe SV21+AP Air Plus Inner Tube

The Schwalbe SV21+AP Air Plus inner tube is designed for riders using a 27,5-inch wheel on an e-bike or cargo bike who want an inner tube with thicker walls. It has a 40 mm Presta valve and a high proportion of pure butyl rubber, which helps improve air retention.

The manufacturer claims approximately 70% greater wall thickness, designed for heavy loads, making it particularly suitable for e-bikes and cargo bikes. To choose the size, read the tyre width on the sidewall: this version covers 2,10 to 2,75 inches (ETRTO 54-584 to 70-584). The inner tube weighs 400 g and is 100% recyclable.

Schwalbe was established in Germany in 1973 by Ralf Bohle, with roots in the family business founded in Bergneustadt in 1922. Today it is based in Reichshof and makes bicycle tyres and inner tubes. Its name means “swallow” in German and translates Swallow, the name of the first tyres imported from Korea.