You might want to check out Heli Bars. HeliBars Website They make risers for the Pan America. They have been in business for years and make risers for a lot of bikes.Looking for risers and found these, not sure if they fit well on the bike.
Handlebar Risers Backward Adapters For Harley Pan America 1250 RA1250/S 2021+
View attachment 1222