Joined: Aug 2010
Posts: 12,727
Likes: 2,105
From: Madison, WI
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
Velocity (the rim company) made a cage that was adjustable for height, but it went out of production over a decade ago. The clamp on it was made of two Aluminum extrusions that were pressed together to hold the cage.
Unfortunately I do not have a good photo that shows the cage well, but I can show you this photo that shows three of teh cages on my expedition bike.