Blue-J,
Many pull back risers are available through HD, JPCycles, Barons, etc, that will fit a Bonnie… You'll lose your dog-bone though. I used to have a set but I can't find the pair. I look for it this weekend and if I locate it I'll send 'em to you for shipping cost. I love swap meets and Goggle search is your freind. I hope you find some to your liking… They're out there bro…
Allin...