Posted by Sid Vaught on November 1, 2013 
I was in Christchurch in the seventies and remember seeing an old preserved electric. I would almost say at practically this same spot. I liked the tri-Bo's looks but never could determine how they went around curves. I must get back. Thanks for sharing the excellent images.
Posted by Kibu on December 24, 2014 
Sid, the middle bogie is on a floating mount that allows it to move side to side laterally to allow the tri-bo to maneuver around curves.
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