The Schwalbe Tube No.7 fits 20" tires with a width of 40-62 mm and is used in children's bikes, trailers, BMX, trials, folding bikes, and mountain bikes. Due to their excellent manufacturing, Schwalbe tubes have proven themselves on the market for years. They have uniform wall thickness and are round in shape. Thanks to their precise construction, they are durable at the seams. A comparative test showed that the Schwalbe tube maintains air pressure significantly longer than other tubes (the latter lost almost twice as much air pressure as the Schwalbe tube over 30 days). A potential reason for this 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 individual Schwalbe tube is inflated and checked for at least 24 hours before it leaves 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 - Now also available with the new Schwalbe Clik Valve **Suitable for tire sizes:** 40-406 | 20 x 1.50 42-406 | 20 x 1.60 44-406 | 20 x 1.50 44-406 | 20 x 1.625 44-406 | 20 x 1.75 47-406 | 20 x 1.75 47-406 | 20 x 1.85 47-406 | 20 x 1.90 50-406 | 20 x 2.00 54-406 | 20 x 2.00 54-406 | 20 x 2.10 55-406 | 20 x 2.15 57-406 | 20 x 2.125 57-406 | 20 x 2.25 60-406 | 20 x 2.35 62-406 | 20 x 2.40 62-406 | 20 x 2.50 54-428 | 20 x 2.00 **Valves:** - AV = Auto, Schrader - DV = Dunlop, Blitz, German valve - SV = Sclaverand, Presta, French valve (40 mm) - SCV = Schwalbe Clik Valve **Delivery includes:** - 1 x Schwalbe Tube No.7 including valve