Shimano Di2 Remote TT Shifters.Not compatible with Dura-Ace 7970 Di2 systemsSW-R671 2-button TT/Tri shifter set have 600mm length built-in E-tube wires, controls front and rear derailleursAll Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctionsUse Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
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Features: Shimano Di2 SW-R671 Remote TT Shifter Set- 2-Button Design For Fr And Rr Derailleur
- Dura-Ace Di2 TT switch set for remote gear change
- 10S, Double/Triple
- 2-Button Design For Front and Rear Derailleur