Bicycle tyre size 28 x 175 inches size etrto 47 622 diameter inches 28 inch applications touring city electric bike type clincher reflective puncture protection smart guard flat less weight 1 100 g series schwalbe marathon schwalbe unplattbar min reifendruck 3 bar max tire pressure 5 bar tpi 67 gummimischung endurance tyre profile hs440 max load 115 kg colour black puncture protection