About: http://webisa.webdatacommons.org/162721764

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	Actually, it is steel, and the plastic is a covering to protect it from moisture, and to keep it from scratching the paint of the bicycle.
http://www.w3.org/ns/prov#wasQuotedFrom	sheldonbrown.com