BICYCLE HELMET SAFETY
In 2011, 675 bicyclists were killed in vehicle collisions. Of those killed, 67% were not wearing a helmet. While some still argue that bike helmets are statistically irrelevant to injury data, most seem to agree that bike helmets help prevent head injuries.
The following image has been compiled from 2011 data obtained by the IIHS via Fatality Analysis Reporting System (FARS), information from Bicycle Helmet Safety Institute and the Federal Highway Administration.