Bicycle tyre sizes 26 x 190 26 x 2125 26 x 210 26 x 195 26 x 200 26 x 220 26 x 225 inches sizes etrto 54 559 50 559 57 559 diameter inches 26 inch applications trekking terrain type clincher reflective puncture protection continental plus breaker weight 950 g series continental country plus tpi 66 puncture protection