Mtb tyre sizes 26 x 2125 26 x 190 26 x 210 26 x 195 26 x 220 26 x 200 26 x 225 inches sizes etrto 54 559 50 559 52 559 57 559 diameter inches 26 inch applications enduro cross country types folding tyre tubeless series hutchinson taipan tpi 127 66 33 colour black