Me? I've never even used them. I think you are supposed to put them through the wheel. I think the owners man. tells you how to use it, even though the U-lock is not avail. in the US.
For the CB, Mr. T will sell you the correct one and the cylinder after you tell him if you have an A or B key. You need to order the big rubber o-ring hold down band for it too. Was about $5 when I got it.
They do not have the ST in Japan so he sent me the CB one. It fits fine, but I think is supposed to have the longer one. I didn't know they had 2 sizes when I bought it. I think webike sells both sizes.
Me attach photos? Ferret is spitting coffee now laughing.