Edited sentence: Besides, unlike cruisers, sport bikes are typically ridden by young men in excellent physical condition, whose organs are highly suitable for transplantation should they die in an accident involving one.These machines are also called donor cycles (also 'murder cycles') by ER trauma surgeons because of high fatality rates among motorcycle riders ( one is estimated to be as much as 34 times as likely to die per mile traveled on a street motorcycle, compared to a passenger car  )