Amazon.com: WSays 1 inch to 1-1/4 inch (1.25") Gloss Black Bar Handlebar Riser/Clamp Compatible with Harley : Automotive
KLICKfix Handlebar Adapter Button with lock
Klickfix Handlebar Adapter - Swift Industries
KLICKfix Handlebar Adapter clamp Ø 31.8mm - Pair
1.25" Handlebar Riser Adapter – CMC Motorsports
Amazon.com: TIGERSGATE Chrome Handlebar Riser Adapter handlebar shim changing mounting diameter from 1 to 1.25 inch for Harley Dyna Road Glide Road King : Automotive