It's like they just bolted on some spare bits they had hanging around the workshop.
Ridiculous.
There were a few linkage designs like that. I remember one with 2 pairs of Kona project 2s, actually marketed by Kona
one of those is on ebay..
http://www.ebay.de/itm/Kona-Joe-Murray-Z-Link-wie-Future-Shock-project-2-superselten-retro-kult-vintage-/222670803074?hash=item33d836d082:g:DrcAAOSwQG5ZxnNB
@Rik_Van_Looy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
It's like they just bolted on some spare bits they had hanging around the workshop.
Ridiculous.