4 Pack 16/18/20/24/26/27.5/29 Inch Bike Tube Suitable for 1.75 1.95 2.0 2.1 2.125 Bike Inner Tube Schrader Valve 32mm Butyl Rubber Bicycle Tube Replacement and Tire Levers (20 X 1.75-2.125) - SMQ

• Specification: Valve Type: Presta Valve. Length: 48MM. Quantity:6 inner tubes and 6 tire levers. Material : Butyl Rubber. Suitable for 20X1.75/1.95/2.0/2.1/2.125 BIKE TIRES Air Tightness: Butyl inner tubes retain air well, and their airtight properties ensure that the tires maintain consistent pressure for longer. They are elastic enough to absorb shock and vibration during a ride, leading to a smoother ride Durability: Butyl tubes are quite durable and resistant to environmental factors such as UV rays and ozone, which helps them last longer under various conditions Puncture Resistance: Butyl tubes offer good puncture resistance due to their thicker and more resilient material compared to latex inner tubes Temperature Stability: Butyl inner tubes perform well across a wide range of temperatures, maintaining their flexibility and air retention capabilities in both hot and cold weather