YunSCM 2 Pack 27.5 inch Bike Inner Tubes 27.5x1.75/1.95/2.125 ETRTO 47/57 584 AV32mm Schrader Valve Compatible with 27.5x1.75 27.5x1.90 27.5x1.95 27.5x2.0 27.5x2.10 27.5x2.125 Tyre

【Size】27.5'' Bike inner tube 27.5x1.75/1.90/2.125 AV 32mm. 【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】The bike 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 & Safe】After replacing the butyl rubber tube, it absorbs the impact on the uneven road surface, making riding more comfortable and safe.