The Schwalbe Tube No. 13 fits 26" tires with a width of 40-62 mm and is used among others in mountain bikes, youth bikes, city/trekking bikes, e-bikes, etc. Due to their excellent manufacturing, Schwalbe tubes have proven themselves in the market for years. They are consistent in wall thickness and round in shape. Their precise bonding makes them durable at the seams. A comparative test showed that the Schwalbe Tube maintains air pressure significantly longer than other tubes (the latter lost nearly twice as much pressure in 30 days compared to the Schwalbe Tube). A possible reason could be a lower butyl content in the other tubes. The special quality of Schwalbe tubes arises from the uniqueness of their rubber mixture. To ensure this high quality, each Schwalbe tube is inflated and tested for at least 24 hours before leaving the factory. **Features:** - Butyl rubber ensures double the air retention - 24-hour test for each tube - High elasticity allows coverage of many tire sizes per tube - Recycling process achieves a very good energy balance **Suitable, among others, for tire sizes:** 40-559 | 26 x 1.50 42-559 | 26 x 1.60 44-559 | 26 x 1.625 44-559 | 26 x 1.75 47-559 | 26 x 1.75 47-559 | 26 x 1.80 47-559 | 26 x 1.85 47-559 | 26 x 1.90 50-559 | 26 x 1.90 / 2.00 50-559 | 26 x 1.90 50-559 | 26 x 1.95 50-559 | 26 x 2.00 54-559 | 26 x 2.10 54-559 | 26 x 2.125 54-559 | 26 x 1.95 55-559 | 26 x 2.15 57-559 | 26 x 2.125 57-559 | 26 x 2.20 57-559 | 26 x 2.25 60-559 | 26 x 2.35 62-559 | 26 x 2.40 62-559 | 26 x 2.50 **Delivery contents:** - Schwalbe Tube 26'' No. 13 (AV13) workshop packaging 50 pieces