Bike Tubes 20 X 4.0 AV32mm Schrader Valve 20X3.50 Fat Bike Tubes - one tube

Oe Bike Tube 20 X 4.0 AV32mm Schrader Valve 20X3.50 Fat Bike Tubes Compatible with 20x3.5/4.0 E-Bike/Bicycle Fat Tire Tubes About this item 🚵‍♀️【Size】32mm (Regular valve). Fits 20" x3.5/4.0" tire tube. compatible with Road bike /Mountain bike Tire ( ETRTO : 90-406/100-406 ) bicycle tire tubes. 🚵‍♀️【Installation Precautions】Please check the side of your tire for the tire size your bike uses 🚵‍♀️【High Quality】 The bike tube is made from premium butyl rubber.It has the advantages of good sealing performance, ozone resistance, aging resistance, shock absorption, electrical insulation. 🚵‍♀️【Easy Installation】Installation is quick and easy. Please follow inflation guide when airing a tire from a complete flat. Save time and effort, replace the old tube in a few minutes. 🚵‍♀️【Important Note】When changing a bicycle inner tube, be sure to add a little air before installing it. This gives it form so it doesn't get twisted or bunch up which may cause a pinch flat. Inspect for an even bead of the tire to the rim on both sides. 🚵‍♀️【Comfortable and Safe】After replacing the butyl rubber tube, it absorbs the impact on the uneven road surface, making riding more comfortable and safe.