By going used / NOS you could use the ones originally designed for it? http://raleightwenty.webs.com/thedaweskingpin.htm Searching e-bay for pletscher might work, or something might catch your eye here: http://raleightwenty.webs.com/touringtwenties.htm I made front and rear racks for a 'shopper' some years ago. In practice, I tend to use one or the other, rarely both - it might be worth trying just one to start with. FWIW I use the rear one most. https://www.lfgss.com/post2858812-203.html
@MrE started
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By going used / NOS you could use the ones originally designed for it?
http://raleightwenty.webs.com/thedaweskingpin.htm
Searching e-bay for pletscher might work, or something might catch your eye here:
http://raleightwenty.webs.com/touringtwenties.htm
I made front and rear racks for a 'shopper' some years ago. In practice, I tend to use one or the other, rarely both - it might be worth trying just one to start with. FWIW I use the rear one most.
https://www.lfgss.com/post2858812-203.html