Our Lt80 didn’t have these when I bought it but as I rebuilt it for our 5yr old, he was just short of reaching the pegs comfortably. I installed a set of these and it gave him that 1inch that lets him rest his feet and push off the seat going over bumps. He said he feels much better on it now and we can sell his little Lt50 now.
It works great and plugged directly to our LT80 but the mounting nut made it so the nut didn’t tighten it in place. The threads bottomed out but the ignition was still loose so the whole thing would rotate when I turned the key. There’s a nub that’s supposed to lock it in place but it wasn’t big enough to catch the hole and stay. I ended up smearing epoxy all over it and it’s working fine.