20x4.0 Fat Tire Bike Inner Tubes

• 20×4.0 fat tire inner tubes compatible with a wide range of e-bikes, mountain bikes, and fat tire bicycles

• Premium butyl rubber construction that provides excellent air retention and long-lasting durability

• Enhanced puncture and leak resistance for tackling off-road trails, gravel, and rugged riding environments

• Designed for Schrader valve (AV) systems to ensure easy inflation and universal fit with standard pumps

• Maintains stable pressure and smooth riding comfort across various terrains including sand and snow

• Ideal replacement for worn, damaged, or flat 20-inch inner tubes

• Heavy-duty build helps protect against pinch flats and impact damage

• Great for fat tire e-bikes used for commuting, adventure riding, and outdoor sports

• Compatibility

  Inner Tube for Most Bikes fitted with Fat 20 x 4 size tyres