The Schwalbe Tube No.16 fits 28" (or 27" -630) tires with a width of 28-32 mm and is used in city, cross, and trekking bikes, among others. Due to their excellent manufacturing, Schwalbe tubes have established a strong market presence for years. They are uniform in wall thickness and have a round shape while in motion. Their precise construction ensures durability at the seams. A comparative test showed that the Schwalbe tube maintains air pressure significantly longer than other tubes (the competitors lost almost twice as much air pressure in 30 days as the Schwalbe tube). 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 guarantee this high quality, each individual Schwalbe tube is inflated and tested for at least 24 hours before leaving the factory. **Features:** - Butyl rubber ensures twice the air retention. - 24-hour test for each tube. - High elasticity allows coverage of many tire sizes per tube. - Recycling process results in a very good energy balance. **Suitable for tire sizes:** 28-622 | 28 x 1.10 | 700 x 28C 28-622 | 28 x 1 5/8 x 1 1/8 | 700 x 28C 30-622 | 28 x 1.20 | 700 x 30C 32-622 | 28 x 1.25 | 700 x 32C 32-622 | 28 x 1 5/8 x 1 1/4 | 700 x 32C 28-630 | 27 x 1 1/8 28-630 | 27 x 1 1/4 28/32-630 | 27 x 1 1/4 32-630 | 27 x 1 1/4 **Valves:** - AV = Auto, Schrader - DV = Dunlop, Blitz, German valve - SV = Sclaverand, Presta, French valve (40 mm) **Delivery Contents:** - 1 x Schwalbe Tube No.16 Including valve