Bicycle tyre size 20 x 135 inches size etrto 35 406 diameter inches 20 inch applications touring city electric bike type clincher reflective puncture protection smart guard flat less weight 560 g series schwalbe marathon schwalbe unplattbar min reifendruck 45 bar max tire pressure 7 bar tpi 67 gummimischung endurance tyre profile hs440 max load 70 kg colour black puncture protection