Shimano Dura-Ace SL-BSR1 ShiftersThe 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 19-22mmItem SpecificationsDou...

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Shimano Dura-Ace SL-BSR1 ShiftersThe 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 19-22mmItem SpecificationsDouble or TripleDoubleFront Der/Shifter CompatibilityShimano RoadRear Der/Shifter CompatibilityShimano RoadDrivetrain Speeds11Mount TypeBar EndMount TypeDowntubeEnd TypeShimano/SRAM

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