2-PCS 20x4 Self-Sealing Fat Bike Tubes 20 x 4.0/4.5 AV32mm Super Automatic Repair,Puncture Resistant Compatible with 20 x 4 20x4 1/4 20x4.50 E-Bike

SIZE: 32mm Schrader Valve. Fits all 20"x4.0/4.5 fat bike tire tubes Installation Precautions:Please check the side of your tire for the tire size your bike uses Easy To USE: The Self Sealing Bike Inner Tube is a self-repair for some small holes or very fine cracks.For example, after a long time, some places will leak air quietly,accidentally hit nails and other problems, which are easy to repair.It is worth noting that our self-repairing inner tube can be used within the normal temperature environment and cold days -15 ℃,and it is more conducive to travel in cold weather. Safe Bike Tubes: Pre-installed with Sealant to provide maximum puncture protection and prevent flat tires on your bike.The self-repairing inner tube is a thicker design, which is more durable than the normal inner tube.The puncture repair fluid circulates through the inner tube, automatically sealing the punctures.After testing, the leak can be repaired within 5~8 seconds under normal conditions. Ultra Durable: Our inner tubes have higher puncture resistance , and the body can withstand more friction and wear, thus extending the service life of the tube, reducing replacement frequency and maintenance costs. And in long-term use. Please note: Because the Self Sealing fluid is flowing, in order to prevent the liquid from flowing out during operation, please do not concentrate the center of gravity or the liquid near the air nozzle when pumping up Installation: 20"x4.0"/4.5" fat bicycle replacement inner tube for easy installation and removal. Check the valve position to ensure that the installation direction is correct This inner tube is compatible with the corresponding models of mountain bikes, road bikes, Cruiser bikes, electric bikes

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