Mtb tyre bike winter tyre size etrto 57 622 diameter inches 29 inch applications mtb touring types folding tyre tubeless puncture protection race guard karkasse liteskin weight 890 g series schwalbe ice spiker min reifendruck 2 bar max tire pressure 4 bar tpi 67 gummimischung winter tyre profile hs379 max load 120 kg colour black