About: http://webisa.webdatacommons.org/295600854

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Particularly when falling backwards e.g. impacted from behind as the spoiler can catch e.g. on a car and cause the helmet to be forced up exposing the back of the head ready for impact.
http://www.w3.org/ns/prov#wasQuotedFrom	singletrackworld.com