Bicycle tyre size 28 x 100 inches size etrto 25 622 diameter inches 28 inch applications touring city electric bike type clincher reflective puncture protection smart guard flat less weight 595 g series schwalbe marathon schwalbe unplattbar min reifendruck 6 bar max tire pressure 8 bar tpi 67 gummimischung endurance tyre profile hs440 max load 75 kg colour black puncture protection