Schwalbe SV13 Inner tubes Presta valve Innertube for Mountain bikes 40mm presta valve 26" 100% Recyclable Rubber To fit the following sizes: 26x1.50 (40-559) 26x1.75 (47-559) 26x2.00 (50-559) 26x2.10 (54-559) 26x2.25 (57-559) 26x2.35 (60-559) 26x2.40 (62-559)