Bicycle tyre size 28 x 140 inches size etrto 37 622 diameter inches 28 inch applications touring city electric bike type clincher reflective puncture protection smart guard flat less weight 900 g series schwalbe marathon schwalbe unplattbar min reifendruck 4 bar max tire pressure 6 bar tpi 67 gummimischung endurance tyre profile hs440 max load 95 kg colour black puncture protection