Attach Kryptonite Messenger Mini+
Is there a convenient way to attach this to the frame?


According to Diane Craig at Kryptonite support:


  The Flex frame bracket will not work with the Messenger Mini +. We do not make a spline for the Messenger series to attach the lock to the bracket. The Transit H bracket will work it mounts to the handlebars and the lock hangs down"


Pictures of the bracket in use were few and did not include the Messenger Mini+.


Bracket empty
  

"convenient" is in the eye of the beholder.