Well, here's where the question comes from. I used to ride a Kawasaki 900 back in the 70's and on long rides it helped to be able to move the feet back to relieve fatigue
On the Bobber on long rides (150+ miles) at higher speeds my legs want to move to another position. I used to hook my heels on the back pegs and could ride for greater distances without fatigue. I am a little older.....
I´m not sure exactly how you want to place your feet (i guess like the TMAX riders do, by bending their legs and using the passenger footpegs to create a ´sports´position) but theoretically you should be able to fabricate a pin and place some pegs here:
Another option would be to totally move the footpeg position to a more forward location, like the FreeSpirits mod: