Shimano Dura-Ace SL-BSR1 11-Speed Bar End Shifters Look Keo filling both the positive and H721630-01

Shimano Dura Ace SL BSR1 11 Speed Bar End Shifters Look Keo filling both the positive and H721630 01 filling both the positive and negative air spring chambers simultaneously Tightly spaced center pattern to promote speed with an incremental increase in block size from center to outside for predictable transitions between zones Shimano Dura Ace SL BSR1 ShiftersThe right side rear shifter is 11 Speed index only left side front is 2 Speed spec fit range of 19 22mm Double or Triple Double Rear Der Shifter Compatibility Shimano Road Mount Type Downtube Drivetrain Speeds 11 End Type Shimano SRAM Front Der Shifter Compatibility Shimano Road