In 2012, 30% of motorcyclists killed on North Carolina roads were riding with a BAC over the legal limit (NHTSA).
In 2013, 34% of all motorcyclists killed in the United States were speeding (NHTSA).
Naumann, R. B., Marshall, S. W., Proescholdbell, S. K., Austin, A., & Creppage, K. (2015). Impact of north carolina’s motorcycle helmet law on hospital admissions and charges for care of traumatic brain injuries. North Carolina Medical Journal, 76(2), 70.