0547774RR (ワッチョイ 4d25-/WcA [114.181.112.35])2021/08/21(土) 00:55:04.22ID:8IHpC09l0 While it was an impressive achievement from Honda to create an air-cooled inline four-cylinder engine capable of hitting Euro 4 emissions limits, the CB1100EX and CB1100RS won’t be getting updated into Euro 5 form.