But they are not open barrel I have understood is the best to use? Or?
The stock terminals are open barrel. when crimped correctly with the proper tool, the open barrel type crimp the wire AND the insulation. this gives strong crimps which are difficult to pull apart. so there should be no chance of failure. a rather important consideration for a motorcycle. Those other ring terminals may require a special tool. not sure. but I doubt they're as strong as the open barrel type since they don't grip the wire and insulation separately.
image has been posted here on KZR before.