Multi-scenario Adaptation:Our 20 x 4 fat tire tube design is suitable for mountain bikes, gravel bikes, city bikes, electric bikes and electric-assisted bikes.
High performance: 20x4.0 fat tire tube can maintain optimal pressure for 7 to 14 days under normal use. All-weather performance - Maintains flexibility within a temperature range of -20°C to 60°C, suitable for winter cycling, summer commuting and year-round use.
High-Quality Materials: Inner tube is made of high-quality butyl rubber and have excellent puncture resistance and aging resistance. Therefore, their durability is superior to that of ordinary bicycle inner tubes, ensuring a comfortable and worry-free riding experience on any terrain.
Produc Includes:1 Pack 20 x 4 fat tire tube.Featuring a user-friendly Schrader valveand and 1 Pack tire levers.It is convenient for cyclists to carry out tire maintenance easily.
Important Notice: Before installing the 20x4 fat tire tube, please first fill the inner tube with a small amount of air, and then align the air valve with the air hole of the inner tube for installation. If you install it without inflating first, subsequent inflation may cause the position of the air hole of the inner tube to shift.