I seem to recall someone put Harley pegs on. Something wider anyway. I’ll have to do some searching and see if I can find the thread.
Ok, it wasn’t Harley pegs, it was ST pegs:
http://cb1100forum.com/forum/showthread....#pid169626
He said he used a 2002 ST1100, but the part number is the same for the 2012 ST1300. I have one and can send you a pic if you want. Notice that you cannot buy a peg. You have to buy all the parts and put it together if you buy Honda OEM parts. Here a a fiche:
https://www.partzilla.com/catalog/honda/...0a-ac/step