A nice interview with Wim van de Kaaij by Henk Leenaers is here (in Dutch): http://www.henkleenaers.nl/fiets3.htm
RIH track frame urbanised
Columbus MAX track frame with clichers, Nitto riser bars and a front brake for daily use in Amsterdam. 63cm c/t handbuilt in Amsterdam in 2001. Willem Velthoven’s favorite bike!