Schwalbe AV2C

"The Schwalbe Standard AV2C inner tube is the perfect choice for anyone looking for a reliable and durable inner tube for their 14-inch tires. This inner tube is specially designed for 14 inch (ETRTO 28/40-254) bicycle tires and is characterized by its exceptional airtightness. Thanks to the first-class material quality and the uniform wall thickness, it retains the air for an above-average length of time, which means less frequent pumping and therefore more riding comfort."
"The proven reliability of the Schwalbe inner tube has been confirmed millions of times in daily use. Whether for the daily commute to work, a relaxed bike ride at the weekend or sporty use, this inner tube offers maximum safety and performance. With the AV2C tube from Schwalbe, you are investing in a product that impresses with its durability and quality and gives you more time for the essentials: cycling."