About: http://webisa.webdatacommons.org/429508943

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	Significant difference in hub quality, but I personally do not know the answers to your question other than yes, bearing quality and weight improve with higher end hubs.
http://www.w3.org/ns/prov#wasQuotedFrom	bikeforums.net