The **Schwalbe Air Plus No. 7-AP** is the perfect choice if you're looking for maximum puncture protection, long-lasting air retention, and robust performance. Whether for daily use, commuting, or touring – this tube is designed to make your life easier and reduce the frequency with which you need to pump. **Your advantages at a glance:** - ✅ **Extremely pressure-stable** – thanks to a high butyl content, this tube retains air significantly longer than standard models. - ✅ **More puncture protection** – approximately 70% thicker wall for above-average protection against punctures and impacts. - ✅ **Ideal for everyday and trekking use** – reliable, robust, and durable on all urban and touring-compatible routes. - ✅ **Quality control** – every tube is double-checked for air retention in the factory. - ✅ **Universally applicable** – fits numerous 20" tire sizes (40–62-406). - ✅ **Easy installation** – thanks to the AV valve (auto valve) in a 40 mm length. **Technical details:** - **Tire size**: 20 inches - **ETRTO**: 40–62/406 - **Material**: Butyl - **Valve type**: AV (auto valve) - **Valve length**: 40 mm - **Model**: Air Plus Series - **Weight**: approx. 220 g - **Compatible tire dimensions**: 20" x 1.50–2.40 (40-406, 47-406, 50-406, 54-406, 55-406, 57-406, 60-406, 62-406) **Why choose Schwalbe Air Plus?** The **Schwalbe Air Plus tube** is one of the most popular options for commuters, e-bike riders, and anyone who values low maintenance and high puncture safety. With its thicker wall, it offers more protection than standard models – ideal for city bikes, folding bikes, or cargo bikes in the 20" format. Are you looking for a tube that you can truly rely on? Then the **Air Plus No. 7-AP** is the right companion for your everyday needs. **Delivery includes**: - 1x **Schwalbe Air Plus Tube No. 7-AP (20")** with AV valve