Included are pictures of how I made my own wide loaders in a couple of hours with hand tools.
1. Sawed some plywood
2. Stuck some dowel into the appropriate orfices. (Wood mallet is a good tool here.)
3. Fastened the plywood withto the dowels.
I have some bicycle-related stuff here: http://theaccidentalhermit.blogspot.com/search/label/bicycle