Heel guards
#1
#5
Tried looking for DS650 on Google and showed some on result, not much with DS650X. Better to try to call the manufacturers or some big retailers like MotoSport.com, 4WheelOnline.com/ATV, etc. and see if they will fit to your DS650X.
Try looking for nerf with heel guard as well.
Try looking for nerf with heel guard as well.