- Ultra-light design: Each tube weighs 30 g, about 100 g lighter than traditional butyl inner tubes. A pair reduces load by around 200 g, helping your bike feel more responsive and easier to ride. - Wide tire compatibility: 28 inch / 700C road tube compatible with tire sizes 18/23/25/28/30/32c. Ideal for road, touring, and hybrid setups. - Durable, wear-resistant material: Made from TPU, offering better durability than rubber. TPU is oil- and water-resistant and provides strong load and impact resistance for longer life. - Lower rolling resistance: Lighter weight and reduced friction on the tire contact patch deliver smoother—faster—performance and improved efficiency on long rides or tight climbs. - Practical package: Includes 4 repair kits and 2 pry bars for on-the-go maintenance and quick field fixes. - Use scenarios: - Road racing or fast training rides where every gram counts and quick repairs are handy. - Commuting or touring where reduced weight and reliable performance improve comfort over longer distances. - Spare tire setup for mixed-terrain rides, ensuring compatibility across common road tire sizes and easy adjustments.