YZ250K.
The G/Hs have the swept back bar mounts to clear the extra long forks.
Don't know what the Js have (remembering that the Js have coolant passages).
The K/Ls have 'normal', shorter forks, so they get the upright bar mounts.
Not real sure about the IT-H/Js, but they've got 38mm forks anyhow.
IT-K has upright bar mounts.