2-PCS 28"/29" Self-Sealing Bike Tubes 29x2.125/2.20/2.25/2.30/2.35/2.40 AV48mm Schrader Valve Bike Tubes Automatic Repair Puncture Resistant Compatible with 28/29x2.125-2.40 Bicycle Tire Tubes

Additional Details from the Manufacturer

This item information is coming from the manufacturer. Some of the details may vary from the Nellis Auction listing. Please check the Quality Rating and Notes for information specific to this listing

More features

• SIZE: AV48mm Schrader Valve. Fits all 28"/29"x2.125/2.40 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 Tires：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 tower.The bicycle inner tube rolls through the tire repair liquid to automatically fill the punctured area.After testing, the leak can be repaired within 5~8 seconds under normal conditions.
• Installation: 28"/29"x2.125"/2.40" bicycle replacement inner tube for easy installation and removal. Check the valve position to ensure that the installation direction is correct.
• Tip: Before installing the inner tube, please put the inner tube into the water for inspection, if there are bubbles, it means that it has been damaged, you can contact us. Check the valve position to ensure that the installation direction is correct. Note: The inflatable inner tube should avoid puncture by sharp objects.
• 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.