About: http://webisa.webdatacommons.org/191371692

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	Optionally, a torsion spring or other biasing means may be used to bias the traction assembly towards the rim inner diameter.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com