The owner's manual says that the bolts are M14 x 1.5. So why would you want M14x1.25 threaded lock nuts? Keep the thread pitch the same, I don't see why you wouldn't get M14x1.5 nuts.M14x1.5.
I posted a pic in post 36 of the OEM tires thread. They should probably be m14x1.25, but those don't seem to exist yet.