Schwalbe ONE 28-622 V-GUARD SKL. The name only lets you know that this tyre is Schwalbe’s Nr. 1. This tyre features new design, better compound and high-quality construction. It has been originally developed for various races, but Schwalbe has adjusted the design to the needs of wheelchairs thanks to a specific compound. Schwalbe One is fast and reliable. The V-Guard protect the tyre from damage.