Continental MTB 29-inch Inner Tube The advantages of the Continental Unitube system The Continental MTB 29-inch 47/62-622 inner tube is a flexible solution for mountain bikers seeking broad compatibility and reliable performance. Thanks to its multi-size concept, this tube covers a wide range of tire sizes, reducing the need to keep various tubes on hand. The 47/62-622 format is specifically designed for 29-inch mountain bike tires with widths from 1.75 inches to 2.4 inches. Continental offers these tubes with both Schrader and Presta valves, with Presta valves also available in various lengths to accommodate different rim heights. A special feature of all Continental inner tubes is their seamless and molded (vulcanized) construction. This manufacturing method ensures uniform roundness of the tube and improves reliability in the valve stem area, a critical point for many tubes. Every single Continental inner tube undergoes a strict 100% quality control. This comprehensive testing process ensures that each tube meets the manufacturer's high standards and offers good durability and airtightness. Thus, the Continental MTB 29-inch 47/62-622 inner tube is a good choice for mountain bikers who value versatility, longevity, and quality. Multi-size inner tubes allow for greater compatibility with more tire sizes and fewer tubes. Unitubes are available with both Schrader and Presta valves. Presta valves are available in various lengths. All inner tubes are seamless and form-cured (vulcanized) to ensure uniform roundness and improved reliability at the valve stem. Every single inner tube undergoes a strict 100% quality control.