The right-side/rear shifter is 11-Speed, index-only, left-side/front is 2-Speed.
All bar-end road shifters produced after Nov 2008 have an I.D. spec fit range of 19-22mm.
The legendary locking system has been on the market for many years. All derailleur chains can be easily opened and closed by hand thanks to Connex Link – no tools required.