[Bike Tube Size] 4.0 inch fat bike tube, it fits 20x3.5/20x3.8/20x4.0/20x4.3 inch fat bike tires for E-Bike / Fat tire bike.Please confirm the size of your bike tire before you buy.
[About Valve] type:Schrader AV35mm, it's higher than others such as 32mm. and easier to inflate. Perfectly match for your tires.
[Premium butyl rubber] The bike inner tube is made of premium butyl rubber, Compared to natural rubber,it has better sealing performance, ozone resistance, heat resistance, aging resistance, and shock absorption.
[Easy To Install] Came with 2PCS tire levers, this tire lever help to disassemble the inner bicycle tube, tools are overall sleek, which not hurt your rims pry,and you can reuse this tool, not rust and easily hook the spokes.
[Installation Tips] Before inserting this new bike tube, make sure to check for sharp/pointed objects inside or embedded in the tire, that could puncture the tube. Please inflate the bicycle inner tube to the recommended PSI.
Note: There are 2 bike inner tubes and 2 tire levers in the package.if you have any qusetions, pls feel free to contact us.
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