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 Double or Triple: Double Drivetrain Speeds: 11 Front Der/Shifter Compatibility: Shimano Road Rear Der/Shifter Compatibility: Shimano Road Mount Type: Bar End Mount Type: Downtube End Type: Shimano/SRAM
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