Man knocked out by electric bike in 'brutal' hit-and-runTo play this video you need to enable JavaScript in your browser.This video can not be playedMan knocked out by electric bike in 'brutal' hit-and-runCloseMore on this story.SubsectionWalesPublished3 hours agoShareclose panelShare pageCopy linkAbout sharingRelated topicsWalesFollow Walesclose panelYou are now following WalesUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description