Just bought my new-to-me ST and discovered that the russell day long 2-piece seat does not stay latched. Removed the seat {just pulled it up, lol} and monkeyed around with the catch. Looks like it does not have nearly enough travel to "latch" the u-bolt successfully. Thinking that it could be the seat itself, I tried the other seat it came with, a heated Corbin. Same result. Can't tell if the slide portion is just worn or broken, but as far as I can tell there is no adjustment. Took it off and checked too see if there was something jammed in the slide or.........found nothing. Ordered a new replacement today. Are these known to be a small annoyance? Not a big deal....until your seat flies off....LOL.