About: http://webisa.webdatacommons.org/307506469

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	I have ridden a couple of crude versions--one of my neighbors is an engineer who got interested in them, and he designed one similar to the CVT (continuously variable transmission) in some cars, belt drive with self-adjusting pulleys.
http://www.w3.org/ns/prov#wasQuotedFrom	bikeforums.net