Shimano Dura-Ace SL-BSR1 11-Speed Bar End Shifters

Shimano Dura-Ace SL-BSR1 Shifters

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