Bicycle tyre size 18 x 150 inches size etrto 40 355 diameter inches 18 inch applications touring city electric bike type clincher reflective puncture protection race guard karkasse liteskin weight 295 g series schwalbe marathon min reifendruck 35 bar max tire pressure 6 bar tpi 67 gummimischung schwalbe speedgrip tyre profile hs429 colour black puncture protection