About: http://webisa.webdatacommons.org/195726814

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	Chains were also crap back then, not lasting long especially for the faster bikes, and why Moto Guzzi and BMW had shaft drives for their touring bikes in the 1950s.
http://www.w3.org/ns/prov#wasQuotedFrom	kawiforums.com