I've been reading through a lot of stuff lately and found some interesting variations on the "motorcyclists are x times more likely..." theme. Psychological and social factors influencing motorcycle rider intentions and behaviour ATSB 2007 Australian motorcyclists and their pillions are at least 10 times as likely to die or be seriously injured as car drivers and their passengers. but a year later our risks seem to have gone up dramatically. Fatal and serious road crashes involving motorcyclists ATSB 2008 ...motorcycle riders are 41 times more likely to sustain a serious injury... But AAMI & the RTA thinks it's only 20 times... http://www.aami.com.au/Resources/File.aspx?id=84 A 2004 study by the New South Wales (NSW) Roads and Traffic Authority suggests that, in the event of a crash, motorcycle riders are 20 times more likely to be killed than drivers. But in Victoria (with the lowest crash and fatality rates) VicRoads tells us we go up to 30 times On Melbourneâ€™s arterial roads, riders are 30 times more likely than car drivers to be involved in serious casualty or fatal crashes. And on another subject Community Attitudes to Road Safety: Community Attitudes Survey Wave 18, 2005 Those with a motorcycle licence are the most likely to claim they restrict their alcohol consumption when driving (64%) and the least likely to say they donâ€™t drink (25%). - we might be drunks, but we're responsible about it.