Bicycle tyre sizes 29 x 200 28 x 100 28 x 140 28 x 110 inches sizes etrto 28 622 37 622 50 622 25 622 diameter inches 28 inch applications city cruiser trekking type clincher reflective puncture protection schwalbe kevlar guard weight 960 g min reifendruck 6 bar max tire pressure 8 bar tpi 50 tyre profile hs458 max load 115 kg colours black green white puncture protection