This size inner tube will fit the following tyre sizes: 26x2.10-2.40 or 26x2.10 or 26x2.125 or 26x2.25 or 26x2.35 or 26x2.40. Motorbike. This innertube fits a number of different size tyres. Not all of the sizes this innertube fits will be printed on the innertube itself, as the space is limited.