Bicycle inner tube made from 100% recyclable rubber, designed for a wide range of 27.5", 28" and 29" tyre sizes. Equipped with a 40 mm Schrader (Auto) valve and weighing approximately 220 g. Compatible with ETRTO sizes 40-622, 40-635, 42-622, 44-622, 45-622, 47-622, 50-584, 50-622, 54-584, 54-622, 55-584, 55-622, 57-584, 57-622, 60-584, 60-622, 62-584 and 62-622, covering tyre widths from approximately 1.50" to 2.40". Check the ETRTO size marked on the tyre sidewall before purchase to ensure correct compatibility.