This size inner tube will fit the following tyre sizes: 16x2.50 or 16x2.00 or 16x2.10 or 16x2.125 or 16x2.25 or 16x2.35 or 16x2.40 or 16x3.0 or ETRTO 64-305. Motorbike. Strong and durable this innertube is manufactured from butyl rubber and has a double seam around the valve.