Idaho had 61,000 registered motorcycles in 2014, this represents 4 percent of all registered vehicles in the state, yet motorcyclists represent 13.4 percent of fatalities in all motor vehicle crashes. Analysis of motorcycle crashes from 2009-2013 shows that 70 percent of riders killed in motorcycle crashes were over 40 years old, and 67 percent of fatalities were due to rider error.
In 2014, 25 motorcyclists were killed in motor vehicle crashes, this was a slight decrease over the previous year. More than half of fatal motorcycle crashes (53 percent) involved just the motorcycle, while nearly one-third (32 percent) of fatal motorcycle crashes involved an impaired driver. Idaho does not have a universal motorcycle helmet law, only motorcyclists and passengers younger than 18 years of age are required to wear them, 58.4 percent of motorcyclists involved in the 510 reported motorcycle crashes in 2014 were wearing helmets. The fatality trend based on a 5-year average targets motorcycle fatalities (C-7) goal of 22 by 2015, preliminary estimates show that Idaho had 23 motorcycle fatalities. In addition, Idaho did not meet the fatality trend for un-helmeted motorcycle fatalities (C-8) which was 12; Idaho had 13 un-helmeted rider fatalities.