Those are GoldWing foot pegs. Put those next to ST foot pegs and you'd see the difference easily.They look very similar to the stock ST1300 pegs? Would they work?
Take those GW pegs off the metal mounts and they should fit the ST. They look exactly like the ones on my bike now.
Can you pick those up from the seller? You'd be paying shipping for parts you don't need.
With my sedate riding style that's not a problem. Of course I could tell everybody 'Yeah I drag the pegs all the time. Waddya mean why are all the chicken strips 2" wide?'I can't lean it over as far without dragging a peg...